18799925487475 has 24 divisors (see below), whose sum is σ = 25432121771280. Its totient is φ = 13672162416000.

The previous prime is 18799925487439. The next prime is 18799925487487. The reversal of 18799925487475 is 57478452999781.

It is not a de Polignac number, because 18799925487475 - 2¹⁷ = 18799925356403 is a prime.

It is a super-2 number, since 2×18799925487475² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18799925487392 and 18799925487401.

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, 6178641 + ... + 8704909.

It is an arithmetic number, because the mean of its divisors is an integer number (1059671740470).

Almost surely, 2^{18799925487475} is an apocalyptic number.

18799925487475 is a deficient number, since it is larger than the sum of its proper divisors (6632196283805).

18799925487475 is a wasteful number, since it uses less digits than its factorization.

18799925487475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2553351 (or 2553346 counting only the distinct ones).

The product of its digits is 12802406400, while the sum is 85.

The spelling of 18799925487475 in words is "eighteen trillion, seven hundred ninety-nine billion, nine hundred twenty-five million, four hundred eighty-seven thousand, four hundred seventy-five".