31968617612 has 12 divisors (see below), whose sum is σ = 55946359560. Its totient is φ = 15983943456.

The previous prime is 31968617609. The next prime is 31968617627. The reversal of 31968617612 is 21671686913.

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, 235439 + ... + 345497.

It is an arithmetic number, because the mean of its divisors is an integer number (4662196630).

Almost surely, 2^31968617612 is an apocalyptic number.

It is an amenable number.

31968617612 is a deficient number, since it is larger than the sum of its proper divisors (23977741948).

31968617612 is a wasteful number, since it uses less digits than its factorization.

31968617612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182680 (or 182678 counting only the distinct ones).

The product of its digits is 653184, while the sum is 50.

The spelling of 31968617612 in words is "thirty-one billion, nine hundred sixty-eight million, six hundred seventeen thousand, six hundred twelve".