18979609071325 has 12 divisors (see below), whose sum is σ = 26896817427040. Its totient is φ = 13014589077360.

The previous prime is 18979609071277. The next prime is 18979609071359. The reversal of 18979609071325 is 52317090697981.

It is not a de Polignac number, because 18979609071325 - 2²⁷ = 18979474853597 is a prime.

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, 54227454315 + ... + 54227454664.

Almost surely, 2^{18979609071325} is an apocalyptic number.

It is an amenable number.

18979609071325 is a deficient number, since it is larger than the sum of its proper divisors (7917208355715).

18979609071325 is a wasteful number, since it uses less digits than its factorization.

18979609071325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108454908996 (or 108454908991 counting only the distinct ones).

The product of its (nonzero) digits is 51438240, while the sum is 67.

The spelling of 18979609071325 in words is "eighteen trillion, nine hundred seventy-nine billion, six hundred nine million, seventy-one thousand, three hundred twenty-five".