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Septemoctogintacentillion

A Septemoctogintacentillion (1 Septemoctogintacentillion) is 10 to the power of 564 (10^564). This is an excessively astronomical number!

How many zeros in a Septemoctogintacentillion?

There are 564 zeros in a Septemoctogintacentillion.

What's before Septemoctogintacentillion?

A Sexoctogintacentillion is smaller than a Septemoctogintacentillion.

What's after Septemoctogintacentillion?

A Octooctogintacentillion is larger than a Septemoctogintacentillion.

Septemoctogintacentillionaire

A Septemoctogintacentillionaire is someone whos assets, net worth or wealth is 1 or more Septemoctogintacentillion. It is unlikely anyone will ever be a true Septemoctogintacentillionaire. If you want to be a Septemoctogintacentillionaire, play Tap Tales!

Is Septemoctogintacentillion the largest number?

Septemoctogintacentillion is not the largest number. Infinity best describes the largest possible number - if there even is one! We cannot comprehend what the largest number actually is.

Septemoctogintacentillion written out

Septemoctogintacentillion is written out as:

1,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000


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