172232788231 has 16 divisors (see below), whose sum is σ = 207429262848. Its totient is φ = 139811364000.

The previous prime is 172232788213. The next prime is 172232788291. The reversal of 172232788231 is 132887232271.

It is a happy number.

172232788231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 172232788231 - 2²¹ = 172230691079 is a prime.

It is a super-2 number, since 2×172232788231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172232788201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5279625 + ... + 5312146.

It is an arithmetic number, because the mean of its divisors is an integer number (12964328928).

Almost surely, 2^172232788231 is an apocalyptic number.

172232788231 is a deficient number, since it is larger than the sum of its proper divisors (35196474617).

172232788231 is a wasteful number, since it uses less digits than its factorization.

172232788231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10591902.

The product of its digits is 451584, while the sum is 46.

The spelling of 172232788231 in words is "one hundred seventy-two billion, two hundred thirty-two million, seven hundred eighty-eight thousand, two hundred thirty-one".