## Octoseptuagintacentillion

A Octoseptuagintacentillion (1 Octoseptuagintacentillion) is 10 to the power of 537 (10^537). This is a tremendously astronomical number!

## How many zeros in a Octoseptuagintacentillion?

There are 537 zeros in a Octoseptuagintacentillion.

## What's before Octoseptuagintacentillion?

A Septenseptuagintacentillion is smaller than a Octoseptuagintacentillion.

## What's after Octoseptuagintacentillion?

A Novenseptuagintacentillion is larger than a Octoseptuagintacentillion.

## Octoseptuagintacentillionaire

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

## Is Octoseptuagintacentillion the largest number?

Octoseptuagintacentillion 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.

## Octoseptuagintacentillion written out

Octoseptuagintacentillion 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

## Big Numbers

This is just one of many really big numbers!