31371327672 has 64 divisors (see below), whose sum is σ = 85720550400. Its totient is φ = 9524497920.

The previous prime is 31371327667. The next prime is 31371327707. The reversal of 31371327672 is 27672317313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1227522 + ... + 1252817.

It is an arithmetic number, because the mean of its divisors is an integer number (1339383600).

Almost surely, 2^31371327672 is an apocalyptic number.

It is an amenable number.

31371327672 is an abundant number, since it is smaller than the sum of its proper divisors (54349222728).

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

31371327672 is a wasteful number, since it uses less digits than its factorization.

31371327672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2480396 (or 2480392 counting only the distinct ones).

The product of its digits is 222264, while the sum is 42.

The spelling of 31371327672 in words is "thirty-one billion, three hundred seventy-one million, three hundred twenty-seven thousand, six hundred seventy-two".