18469530117 has 64 divisors (see below), whose sum is σ = 28267315200. Its totient is φ = 11914620480.

The previous prime is 18469530113. The next prime is 18469530187. The reversal of 18469530117 is 71103596481.

It is not a de Polignac number, because 18469530117 - 2² = 18469530113 is a prime.

It is a super-2 number, since 2×18469530117² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18469530113) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26049759 + ... + 26050467.

It is an arithmetic number, because the mean of its divisors is an integer number (441676800).

Almost surely, 2^18469530117 is an apocalyptic number.

It is an amenable number.

18469530117 is a deficient number, since it is larger than the sum of its proper divisors (9797785083).

18469530117 is a wasteful number, since it uses less digits than its factorization.

18469530117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023 (or 1017 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 18469530117 in words is "eighteen billion, four hundred sixty-nine million, five hundred thirty thousand, one hundred seventeen".