31968958072 has 16 divisors (see below), whose sum is σ = 61875403200. Its totient is φ = 15468850560.

The previous prime is 31968958069. The next prime is 31968958093. The reversal of 31968958072 is 27085986913.

It is a junction number, because it is equal to n+sod(n) for n = 31968957998 and 31968958016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64453297 + ... + 64453792.

It is an arithmetic number, because the mean of its divisors is an integer number (3867212700).

Almost surely, 2^31968958072 is an apocalyptic number.

It is an amenable number.

31968958072 is a deficient number, since it is larger than the sum of its proper divisors (29906445128).

31968958072 is a wasteful number, since it uses less digits than its factorization.

31968958072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128907126 (or 128907122 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 58.

The spelling of 31968958072 in words is "thirty-one billion, nine hundred sixty-eight million, nine hundred fifty-eight thousand, seventy-two".