172127830707 has 160 divisors (see below), whose sum is σ = 304839013248. Its totient is φ = 94771482624.

The previous prime is 172127830703. The next prime is 172127830717. The reversal of 172127830707 is 707038721271.

172127830707 is a `hidden beast` number, since 1 + 72 + 1 + 278 + 307 + 0 + 7 = 666.

It is not a de Polignac number, because 172127830707 - 2² = 172127830703 is a prime.

It is not an unprimeable number, because it can be changed into a prime (172127830703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 587466853 + ... + 587467145.

Almost surely, 2^172127830707 is an apocalyptic number.

172127830707 is a deficient number, since it is larger than the sum of its proper divisors (132711182541).

172127830707 is a wasteful number, since it uses less digits than its factorization.

172127830707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651 (or 642 counting only the distinct ones).

The product of its (nonzero) digits is 230496, while the sum is 45.

The spelling of 172127830707 in words is "one hundred seventy-two billion, one hundred twenty-seven million, eight hundred thirty thousand, seven hundred seven".