18925667573725 has 24 divisors (see below), whose sum is σ = 25646739833952. Its totient is φ = 13739673940800.

The previous prime is 18925667573717. The next prime is 18925667573753. The reversal of 18925667573725 is 52737576652981.

It is not a de Polignac number, because 18925667573725 - 2³ = 18925667573717 is a prime.

It is a super-2 number, since 2×18925667573725² (a number of 27 digits) contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 60964722 + ... + 61274371.

It is an arithmetic number, because the mean of its divisors is an integer number (1068614159748).

Almost surely, 2^{18925667573725} is an apocalyptic number.

It is an amenable number.

18925667573725 is a deficient number, since it is larger than the sum of its proper divisors (6721072260227).

18925667573725 is a wasteful number, since it uses less digits than its factorization.

18925667573725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122239677 (or 122239672 counting only the distinct ones).

The product of its digits is 1333584000, while the sum is 73.

The spelling of 18925667573725 in words is "eighteen trillion, nine hundred twenty-five billion, six hundred sixty-seven million, five hundred seventy-three thousand, seven hundred twenty-five".