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A Quadragintillion (1 Quadragintillion) is 10 to the power of 123 (10^123). This is an extremely humongous number!

How many zeros in a Quadragintillion?

There are 123 zeros in a Quadragintillion.

What's before Quadragintillion?

A Noventrigintillion is smaller than a Quadragintillion.

What's after Quadragintillion?

A Unquadragintillion is larger than a Quadragintillion.


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

Is Quadragintillion the largest number?

Quadragintillion 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.

Quadragintillion written out

Quadragintillion is written out as:


Big Numbers

This is just one of many really big numbers!

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