172676399838 has 32 divisors (see below), whose sum is σ = 354012042240. Its totient is φ = 56124699360.

The previous prime is 172676399809. The next prime is 172676399843. The reversal of 172676399838 is 838993676271.

It is a super-2 number, since 2×172676399838² (a number of 23 digits) contains 22 as substring.

It is a congruent 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, 1062298 + ... + 1214013.

It is an arithmetic number, because the mean of its divisors is an integer number (11062876320).

Almost surely, 2^172676399838 is an apocalyptic number.

172676399838 is an abundant number, since it is smaller than the sum of its proper divisors (181335642402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172676399838 is a wasteful number, since it uses less digits than its factorization.

172676399838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2276632.

The product of its digits is 164602368, while the sum is 69.

The spelling of 172676399838 in words is "one hundred seventy-two billion, six hundred seventy-six million, three hundred ninety-nine thousand, eight hundred thirty-eight".