31325297328 has 60 divisors (see below), whose sum is σ = 94410971200. Its totient is φ = 9638552448.

The previous prime is 31325297287. The next prime is 31325297357. The reversal of 31325297328 is 82379252313.

31325297328 is a `hidden beast` number, since 3 + 1 + 32 + 5 + 297 + 328 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8364928 + ... + 8368671.

Almost surely, 2^31325297328 is an apocalyptic number.

It is an amenable number.

31325297328 is an abundant number, since it is smaller than the sum of its proper divisors (63085673872).

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

31325297328 is a wasteful number, since it uses less digits than its factorization.

31325297328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16733626 (or 16733617 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The spelling of 31325297328 in words is "thirty-one billion, three hundred twenty-five million, two hundred ninety-seven thousand, three hundred twenty-eight".