9904691572 has 24 divisors (see below), whose sum is σ = 19150762176. Its totient is φ = 4458377088.

The previous prime is 9904691567. The next prime is 9904691591. The reversal of 9904691572 is 2751964099.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3164898 + ... + 3168025.

It is an arithmetic number, because the mean of its divisors is an integer number (797948424).

Almost surely, 2^9904691572 is an apocalyptic number.

9904691572 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

9904691572 is a deficient number, since it is larger than the sum of its proper divisors (9246070604).

9904691572 is a wasteful number, since it uses less digits than its factorization.

9904691572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6332967 (or 6332965 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 52.

The square root of 9904691572 is about 99522.3169545404. The cubic root of 9904691572 is about 2147.5683033402.

The spelling of 9904691572 in words is "nine billion, nine hundred four million, six hundred ninety-one thousand, five hundred seventy-two".