31275468672 has 64 divisors (see below), whose sum is σ = 94943395200. Its totient is φ = 8935847424.

The previous prime is 31275468649. The next prime is 31275468703. The reversal of 31275468672 is 27686457213.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5814922 + ... + 5820297.

It is an arithmetic number, because the mean of its divisors is an integer number (1483490550).

Almost surely, 2^31275468672 is an apocalyptic number.

31275468672 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31275468672 is an abundant number, since it is smaller than the sum of its proper divisors (63667926528).

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

31275468672 is a wasteful number, since it uses less digits than its factorization.

31275468672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11635243 (or 11635231 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 51.

The spelling of 31275468672 in words is "thirty-one billion, two hundred seventy-five million, four hundred sixty-eight thousand, six hundred seventy-two".