18823163557825 has 24 divisors (see below), whose sum is σ = 25696208640960. Its totient is φ = 13563981057600.

The previous prime is 18823163557729. The next prime is 18823163557853. The reversal of 18823163557825 is 52875536132881.

It is not a de Polignac number, because 18823163557825 - 2¹³ = 18823163549633 is a prime.

It is a super-2 number, since 2×18823163557825² (a number of 27 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

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, 313951069 + ... + 314011018.

It is an arithmetic number, because the mean of its divisors is an integer number (1070675360040).

Almost surely, 2^{18823163557825} is an apocalyptic number.

It is an amenable number.

18823163557825 is a deficient number, since it is larger than the sum of its proper divisors (6873045083135).

18823163557825 is a wasteful number, since it uses less digits than its factorization.

18823163557825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627962217 (or 627962212 counting only the distinct ones).

The product of its digits is 96768000, while the sum is 64.

The spelling of 18823163557825 in words is "eighteen trillion, eight hundred twenty-three billion, one hundred sixty-three million, five hundred fifty-seven thousand, eight hundred twenty-five".