31282911672 has 16 divisors (see below), whose sum is σ = 78207279240. Its totient is φ = 10427637216.

The previous prime is 31282911661. The next prime is 31282911679. The reversal of 31282911672 is 27611928213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31282911679) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651727303 + ... + 651727350.

Almost surely, 2^31282911672 is an apocalyptic number.

It is an amenable number.

31282911672 is an abundant number, since it is smaller than the sum of its proper divisors (46924367568).

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

31282911672 is a wasteful number, since it uses less digits than its factorization.

31282911672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303454662 (or 1303454658 counting only the distinct ones).

The product of its digits is 72576, while the sum is 42.

The spelling of 31282911672 in words is "thirty-one billion, two hundred eighty-two million, nine hundred eleven thousand, six hundred seventy-two".