31734572164 has 9 divisors (see below), whose sum is σ = 55536124791. Its totient is φ = 15867107940.

The previous prime is 31734572147. The next prime is 31734572173. The reversal of 31734572164 is 46127543713.

The square root of 31734572164 is 178142.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31734572164.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 311749 + ... + 400819.

Almost surely, 2^31734572164 is an apocalyptic number.

31734572164 is the 178142-nd square number.

It is an amenable number.

31734572164 is a deficient number, since it is larger than the sum of its proper divisors (23801552627).

31734572164 is an frugal number, since it uses more digits than its factorization.

31734572164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178146 (or 89073 counting only the distinct ones).

The product of its digits is 423360, while the sum is 43.

The spelling of 31734572164 in words is "thirty-one billion, seven hundred thirty-four million, five hundred seventy-two thousand, one hundred sixty-four".