31952099172 has 48 divisors (see below), whose sum is σ = 87283792512. Its totient is φ = 8906507520.

The previous prime is 31952099161. The next prime is 31952099243. The reversal of 31952099172 is 27199025913.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4635363 + ... + 4642250.

It is an arithmetic number, because the mean of its divisors is an integer number (1818412344).

Almost surely, 2^31952099172 is an apocalyptic number.

It is an amenable number.

31952099172 is an abundant number, since it is smaller than the sum of its proper divisors (55331693340).

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

31952099172 is a wasteful number, since it uses less digits than its factorization.

31952099172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9277668 (or 9277666 counting only the distinct ones).

The product of its (nonzero) digits is 306180, while the sum is 48.

The spelling of 31952099172 in words is "thirty-one billion, nine hundred fifty-two million, ninety-nine thousand, one hundred seventy-two".