172210475631 has 16 divisors (see below), whose sum is σ = 235056457728. Its totient is φ = 112097344800.

The previous prime is 172210475599. The next prime is 172210475683. The reversal of 172210475631 is 136574012271.

It is not a de Polignac number, because 172210475631 - 2⁵ = 172210475599 is a prime.

It is a super-2 number, since 2×172210475631² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 172210475631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172210475231) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1391175 + ... + 1509896.

It is an arithmetic number, because the mean of its divisors is an integer number (14691028608).

Almost surely, 2^172210475631 is an apocalyptic number.

172210475631 is a deficient number, since it is larger than the sum of its proper divisors (62845982097).

172210475631 is a wasteful number, since it uses less digits than its factorization.

172210475631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2901542.

The product of its (nonzero) digits is 70560, while the sum is 39.

The spelling of 172210475631 in words is "one hundred seventy-two billion, two hundred ten million, four hundred seventy-five thousand, six hundred thirty-one".