31680002860 has 48 divisors (see below), whose sum is σ = 76845192480. Its totient is φ = 10842352640.

The previous prime is 31680002819. The next prime is 31680002891. The reversal of 31680002860 is 6820008613.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4231555 + ... + 4239034.

It is an arithmetic number, because the mean of its divisors is an integer number (1600941510).

Almost surely, 2^31680002860 is an apocalyptic number.

It is an amenable number.

31680002860 is an abundant number, since it is smaller than the sum of its proper divisors (45165189620).

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

31680002860 is a wasteful number, since it uses less digits than its factorization.

31680002860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8470626 (or 8470624 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 31680002860 in words is "thirty-one billion, six hundred eighty million, two thousand, eight hundred sixty".