31652317664 has 48 divisors (see below), whose sum is σ = 71558484480. Its totient is φ = 13630181760.

The previous prime is 31652317637. The next prime is 31652317679. The reversal of 31652317664 is 46671325613.

It is a Harshad number since it is a multiple of its sum of digits (44).

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, 2359664 + ... + 2373039.

It is an arithmetic number, because the mean of its divisors is an integer number (1490801760).

Almost surely, 2^31652317664 is an apocalyptic number.

It is an amenable number.

31652317664 is an abundant number, since it is smaller than the sum of its proper divisors (39906166816).

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

31652317664 is a wasteful number, since it uses less digits than its factorization.

31652317664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4732743 (or 4732735 counting only the distinct ones).

The product of its digits is 544320, while the sum is 44.

The spelling of 31652317664 in words is "thirty-one billion, six hundred fifty-two million, three hundred seventeen thousand, six hundred sixty-four".