172858799938 has 16 divisors (see below), whose sum is σ = 283035275136. Its totient is φ = 78523453840.

The previous prime is 172858799857. The next prime is 172858799987. The reversal of 172858799938 is 839997858271.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2400106 + ... + 2471077.

It is an arithmetic number, because the mean of its divisors is an integer number (17689704696).

Almost surely, 2^172858799938 is an apocalyptic number.

172858799938 is a deficient number, since it is larger than the sum of its proper divisors (110176475198).

172858799938 is a wasteful number, since it uses less digits than its factorization.

172858799938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4872809.

The product of its digits is 548674560, while the sum is 76.

The spelling of 172858799938 in words is "one hundred seventy-two billion, eight hundred fifty-eight million, seven hundred ninety-nine thousand, nine hundred thirty-eight".