18358575852 has 12 divisors (see below), whose sum is σ = 42836677016. Its totient is φ = 6119525280.

The previous prime is 18358575821. The next prime is 18358575883. The reversal of 18358575852 is 25857585381.

It is an interprime number because it is at equal distance from previous prime (18358575821) and next prime (18358575883).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 18358575792 and 18358575801.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 764940649 + ... + 764940672.

Almost surely, 2^18358575852 is an apocalyptic number.

18358575852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18358575852 is an abundant number, since it is smaller than the sum of its proper divisors (24478101164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18358575852 is a wasteful number, since it uses less digits than its factorization.

18358575852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529881328 (or 1529881326 counting only the distinct ones).

The product of its digits is 13440000, while the sum is 57.

The spelling of 18358575852 in words is "eighteen billion, three hundred fifty-eight million, five hundred seventy-five thousand, eight hundred fifty-two".