172867891232 has 24 divisors (see below), whose sum is σ = 341231662800. Its totient is φ = 86205881664.

The previous prime is 172867891171. The next prime is 172867891249. The reversal of 172867891232 is 232198768271.

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, 7114682 + ... + 7138937.

It is an arithmetic number, because the mean of its divisors is an integer number (14217985950).

Almost surely, 2^172867891232 is an apocalyptic number.

It is an amenable number.

172867891232 is a deficient number, since it is larger than the sum of its proper divisors (168363771568).

172867891232 is a wasteful number, since it uses less digits than its factorization.

172867891232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14254008 (or 14254000 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 56.

The spelling of 172867891232 in words is "one hundred seventy-two billion, eight hundred sixty-seven million, eight hundred ninety-one thousand, two hundred thirty-two".