31983704680 has 64 divisors (see below), whose sum is σ = 72292358160. Its totient is φ = 12735111168.

The previous prime is 31983704677. The next prime is 31983704737. The reversal of 31983704680 is 8640738913.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 16112240356 + 15871464324 = 126934^2 + 125982^2 .

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, 12931924 + ... + 12934396.

Almost surely, 2^31983704680 is an apocalyptic number.

It is an amenable number.

31983704680 is an abundant number, since it is smaller than the sum of its proper divisors (40308653480).

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

31983704680 is a wasteful number, since it uses less digits than its factorization.

31983704680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3830 (or 3826 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 31983704680 in words is "thirty-one billion, nine hundred eighty-three million, seven hundred four thousand, six hundred eighty".