31368617272 has 8 divisors (see below), whose sum is σ = 58816157400. Its totient is φ = 15684308632.

The previous prime is 31368617263. The next prime is 31368617327. The reversal of 31368617272 is 27271686313.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1960538572 + ... + 1960538587.

It is an arithmetic number, because the mean of its divisors is an integer number (7352019675).

Almost surely, 2^31368617272 is an apocalyptic number.

It is an amenable number.

31368617272 is a deficient number, since it is larger than the sum of its proper divisors (27447540128).

31368617272 is a wasteful number, since it uses less digits than its factorization.

31368617272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3921077165 (or 3921077161 counting only the distinct ones).

The product of its digits is 508032, while the sum is 46.

The spelling of 31368617272 in words is "thirty-one billion, three hundred sixty-eight million, six hundred seventeen thousand, two hundred seventy-two".