172589161087 has 18 divisors (see below), whose sum is σ = 206223684968. Its totient is φ = 141480945672.

The previous prime is 172589161037. The next prime is 172589161097. The reversal of 172589161087 is 780161985271.

It is not a de Polignac number, because 172589161087 - 2¹⁵ = 172589128319 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172589161037) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 25276968 + ... + 25283794.

Almost surely, 2^172589161087 is an apocalyptic number.

172589161087 is a deficient number, since it is larger than the sum of its proper divisors (33634523881).

172589161087 is an frugal number, since it uses more digits than its factorization.

172589161087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13707 (or 6857 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 55.

The spelling of 172589161087 in words is "one hundred seventy-two billion, five hundred eighty-nine million, one hundred sixty-one thousand, eighty-seven".