31700733980 has 24 divisors (see below), whose sum is σ = 66661170912. Its totient is φ = 12663221312.

The previous prime is 31700733949. The next prime is 31700734007. The reversal of 31700733980 is 8933700713.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1051787 + ... + 1081506.

It is an arithmetic number, because the mean of its divisors is an integer number (2777548788).

Almost surely, 2^31700733980 is an apocalyptic number.

It is an amenable number.

31700733980 is an abundant number, since it is smaller than the sum of its proper divisors (34960436932).

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

31700733980 is a wasteful number, since it uses less digits than its factorization.

31700733980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2134045 (or 2134043 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 41.

The spelling of 31700733980 in words is "thirty-one billion, seven hundred million, seven hundred thirty-three thousand, nine hundred eighty".