31968798980 has 36 divisors (see below), whose sum is σ = 69370006860. Its totient is φ = 12375011520.

The previous prime is 31968798971. The next prime is 31968799033. The reversal of 31968798980 is 8989786913.

It can be written as a sum of positive squares in 2 ways, for example, as 12887244484 + 19081554496 = 113522^2 + 138136^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31968798980.

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 11 ways as a sum of consecutive naturals, for example, 812435 + ... + 850874.

It is an arithmetic number, because the mean of its divisors is an integer number (1926944635).

Almost surely, 2^31968798980 is an apocalyptic number.

It is an amenable number.

31968798980 is an abundant number, since it is smaller than the sum of its proper divisors (37401207880).

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

31968798980 is a wasteful number, since it uses less digits than its factorization.

31968798980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663380 (or 1663347 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 68.

The spelling of 31968798980 in words is "thirty-one billion, nine hundred sixty-eight million, seven hundred ninety-eight thousand, nine hundred eighty".