31325637696 has 28 divisors (see below), whose sum is σ = 82882416912. Its totient is φ = 10441879168.

The previous prime is 31325637647. The next prime is 31325637697. The reversal of 31325637696 is 69673652313.

It is a super-2 number, since 2×31325637696² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31325637697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81576990 + ... + 81577373.

Almost surely, 2^31325637696 is an apocalyptic number.

It is an amenable number.

31325637696 is an abundant number, since it is smaller than the sum of its proper divisors (51556779216).

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

31325637696 is a wasteful number, since it uses less digits than its factorization.

31325637696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163154378 (or 163154368 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 51.

The spelling of 31325637696 in words is "thirty-one billion, three hundred twenty-five million, six hundred thirty-seven thousand, six hundred ninety-six".