9131988796 has 24 divisors (see below), whose sum is σ = 18757600736. Its totient is φ = 3807933120.

The previous prime is 9131988769. The next prime is 9131988799. The reversal of 9131988796 is 6978891319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9131988799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4406295 + ... + 4408366.

Almost surely, 2^9131988796 is an apocalyptic number.

It is an amenable number.

9131988796 is an abundant number, since it is smaller than the sum of its proper divisors (9625611940).

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

9131988796 is a wasteful number, since it uses less digits than its factorization.

9131988796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8814709 (or 8814707 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 61.

The square root of 9131988796 is about 95561.4399012489. The cubic root of 9131988796 is about 2090.2029515300.

The spelling of 9131988796 in words is "nine billion, one hundred thirty-one million, nine hundred eighty-eight thousand, seven hundred ninety-six".