9009957996 has 96 divisors (see below), whose sum is σ = 25323200000. Its totient is φ = 2753870400.

The previous prime is 9009957989. The next prime is 9009958037. The reversal of 9009957996 is 6997599009.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190755 + ... + 233253.

Almost surely, 2^9009957996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9009957996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12661600000).

9009957996 is an abundant number, since it is smaller than the sum of its proper divisors (16313242004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9009957996 is a wasteful number, since it uses less digits than its factorization.

9009957996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42676 (or 42668 counting only the distinct ones).

The product of its (nonzero) digits is 12400290, while the sum is 63.

The square root of 9009957996 is about 94920.7985427851. The cubic root of 9009957996 is about 2080.8507057057.

The spelling of 9009957996 in words is "nine billion, nine million, nine hundred fifty-seven thousand, nine hundred ninety-six".