31617046672 has 20 divisors (see below), whose sum is σ = 64482135280. Its totient is φ = 14976495648.

The previous prime is 31617046663. The next prime is 31617046733. The reversal of 31617046672 is 27664071613.

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, 52001418 + ... + 52002025.

It is an arithmetic number, because the mean of its divisors is an integer number (3224106764).

Almost surely, 2^31617046672 is an apocalyptic number.

It is an amenable number.

31617046672 is an abundant number, since it is smaller than the sum of its proper divisors (32865088608).

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

31617046672 is a wasteful number, since it uses less digits than its factorization.

31617046672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104003470 (or 104003464 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 43.

The spelling of 31617046672 in words is "thirty-one billion, six hundred seventeen million, forty-six thousand, six hundred seventy-two".