172327556272 has 20 divisors (see below), whose sum is σ = 333916318216. Its totient is φ = 86155603200.

The previous prime is 172327556267. The next prime is 172327556333. The reversal of 172327556272 is 272655723271.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335193 + ... + 676024.

Almost surely, 2^172327556272 is an apocalyptic number.

It is an amenable number.

172327556272 is a deficient number, since it is larger than the sum of its proper divisors (161588761944).

172327556272 is a wasteful number, since it uses less digits than its factorization.

172327556272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021876 (or 1021870 counting only the distinct ones).

The product of its digits is 2469600, while the sum is 49.

It can be divided in two parts, 17232 and 7556272, that added together give a square (7573504 = 2752²).

The spelling of 172327556272 in words is "one hundred seventy-two billion, three hundred twenty-seven million, five hundred fifty-six thousand, two hundred seventy-two".