18874362663 has 40 divisors (see below), whose sum is σ = 30471658448. Its totient is φ = 11573767296.

The previous prime is 18874362623. The next prime is 18874362701. The reversal of 18874362663 is 36626347881.

18874362663 is a `hidden beast` number, since 1 + 8 + 8 + 7 + 4 + 3 + 626 + 6 + 3 = 666.

It is not a de Polignac number, because 18874362663 - 2²⁹ = 18337491751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18874362613) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 266331 + ... + 329667.

Almost surely, 2^18874362663 is an apocalyptic number.

18874362663 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

18874362663 is a deficient number, since it is larger than the sum of its proper divisors (11597295785).

18874362663 is a wasteful number, since it uses less digits than its factorization.

18874362663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63645 (or 63636 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 54.

The spelling of 18874362663 in words is "eighteen billion, eight hundred seventy-four million, three hundred sixty-two thousand, six hundred sixty-three".