172889511245 has 16 divisors (see below), whose sum is σ = 228404499840. Its totient is φ = 124584264000.

The previous prime is 172889511181. The next prime is 172889511271. The reversal of 172889511245 is 542115988271.

It is not a de Polignac number, because 172889511245 - 2⁶ = 172889511181 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14413481 + ... + 14425470.

It is an arithmetic number, because the mean of its divisors is an integer number (14275281240).

Almost surely, 2^172889511245 is an apocalyptic number.

It is an amenable number.

172889511245 is a deficient number, since it is larger than the sum of its proper divisors (55514988595).

172889511245 is a wasteful number, since it uses less digits than its factorization.

172889511245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28839076.

The product of its digits is 1612800, while the sum is 53.

The spelling of 172889511245 in words is "one hundred seventy-two billion, eight hundred eighty-nine million, five hundred eleven thousand, two hundred forty-five".