31975308680 has 48 divisors (see below), whose sum is σ = 83690481420. Its totient is φ = 10962962304.

The previous prime is 31975308649. The next prime is 31975308749. The reversal of 31975308680 is 8680357913.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30610301764 + 1365006916 = 174958^2 + 36946^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8155007 + ... + 8158926.

Almost surely, 2^31975308680 is an apocalyptic number.

It is an amenable number.

31975308680 is an abundant number, since it is smaller than the sum of its proper divisors (51715172740).

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

31975308680 is a wasteful number, since it uses less digits than its factorization.

31975308680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16313958 (or 16313947 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 31975308680 in words is "thirty-one billion, nine hundred seventy-five million, three hundred eight thousand, six hundred eighty".