172112823875 has 16 divisors (see below), whose sum is σ = 214843654272. Its totient is φ = 137660227200.

The previous prime is 172112823821. The next prime is 172112823889. The reversal of 172112823875 is 578328211271.

It is not a de Polignac number, because 172112823875 - 2³⁰ = 171039082051 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 434294 + ... + 729956.

It is an arithmetic number, because the mean of its divisors is an integer number (13427728392).

Almost surely, 2^172112823875 is an apocalyptic number.

172112823875 is a deficient number, since it is larger than the sum of its proper divisors (42730830397).

172112823875 is an equidigital number, since it uses as much as digits as its factorization.

172112823875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300335 (or 300325 counting only the distinct ones).

The product of its digits is 376320, while the sum is 47.

The spelling of 172112823875 in words is "one hundred seventy-two billion, one hundred twelve million, eight hundred twenty-three thousand, eight hundred seventy-five".