## Unoctogintacentillion

A Unoctogintacentillion (1 Unoctogintacentillion) is 10 to the power of 546 (10^546). This is an exorbitantly astronomical number!

## How many zeros in a Unoctogintacentillion?

There are 546 zeros in a Unoctogintacentillion.

## What's before Unoctogintacentillion?

A Octogintacentillion is smaller than a Unoctogintacentillion.

## What's after Unoctogintacentillion?

A Duooctogintacentillion is larger than a Unoctogintacentillion.

## Unoctogintacentillionaire

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

## Is Unoctogintacentillion the largest number?

Unoctogintacentillion 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.

## Unoctogintacentillion written out

Unoctogintacentillion 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

## Big Numbers

This is just one of many really big numbers!