## Octotrigintacentillion

A Octotrigintacentillion (1 Octotrigintacentillion) is 10 to the power of 417 (10^417). This is a tremendously astronomical number!

## How many zeros in a Octotrigintacentillion?

There are 417 zeros in a Octotrigintacentillion.

## What's before Octotrigintacentillion?

A Septentrigintacentillion is smaller than a Octotrigintacentillion.

## What's after Octotrigintacentillion?

A Noventrigintacentillion is larger than a Octotrigintacentillion.

## Octotrigintacentillionaire

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

## Is Octotrigintacentillion the largest number?

Octotrigintacentillion 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.

## Octotrigintacentillion written out

Octotrigintacentillion 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

## Big Numbers

This is just one of many really big numbers!