31992747696 has 120 divisors (see below), whose sum is σ = 110197287200. Its totient is φ = 8437644288.

The previous prime is 31992747659. The next prime is 31992747701. The reversal of 31992747696 is 69674729913.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1207621 + ... + 1233828.

Almost surely, 2^31992747696 is an apocalyptic number.

31992747696 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

31992747696 is an abundant number, since it is smaller than the sum of its proper divisors (78204539504).

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

31992747696 is a wasteful number, since it uses less digits than its factorization.

31992747696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2441483 (or 2441474 counting only the distinct ones).

The product of its digits is 30862944, while the sum is 63.

The spelling of 31992747696 in words is "thirty-one billion, nine hundred ninety-two million, seven hundred forty-seven thousand, six hundred ninety-six".