Q: How Many Digits in the Number 720,405,457?

 A: The number 720,405,457 has 9 digits.

How does 720,405,457 have 9 digits?

You simply count the number of digits from the first number to the last. Like this:


720405457
Digit # 123456789

What are the number of digits of the numbers near 720,405,457?

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