172033368872 has 24 divisors (see below), whose sum is σ = 333303478650. Its totient is φ = 83241948960.

The previous prime is 172033368863. The next prime is 172033368919. The reversal of 172033368872 is 278863330271.

It can be written as a sum of positive squares in only one way, i.e., 88307631556 + 83725737316 = 297166^2 + 289354^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 172033368872.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11180747 + ... + 11196122.

Almost surely, 2^172033368872 is an apocalyptic number.

It is an amenable number.

172033368872 is a deficient number, since it is larger than the sum of its proper divisors (161270109778).

172033368872 is a wasteful number, since it uses less digits than its factorization.

172033368872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22376937 (or 22376902 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 50.

The spelling of 172033368872 in words is "one hundred seventy-two billion, thirty-three million, three hundred sixty-eight thousand, eight hundred seventy-two".