168879508925 has 12 divisors (see below), whose sum is σ = 209538565236. Its totient is φ = 135021043200.

The previous prime is 168879508849. The next prime is 168879508939. The reversal of 168879508925 is 529805978861.

It can be written as a sum of positive squares in 6 ways, for example, as 925437241 + 167954071684 = 30421^2 + 409822^2 .

It is not a de Polignac number, because 168879508925 - 2⁸ = 168879508669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2022356 + ... + 2104205.

It is an arithmetic number, because the mean of its divisors is an integer number (17461547103).

Almost surely, 2^168879508925 is an apocalyptic number.

It is an amenable number.

168879508925 is a deficient number, since it is larger than the sum of its proper divisors (40659056311).

168879508925 is a wasteful number, since it uses less digits than its factorization.

168879508925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4128208 (or 4128203 counting only the distinct ones).

The product of its (nonzero) digits is 87091200, while the sum is 68.

The spelling of 168879508925 in words is "one hundred sixty-eight billion, eight hundred seventy-nine million, five hundred eight thousand, nine hundred twenty-five".