18500000338852 has 6 divisors (see below), whose sum is σ = 32375000592998. Its totient is φ = 9250000169424.

The previous prime is 18500000338829. The next prime is 18500000338879. The reversal of 18500000338852 is 25883300000581.

It can be written as a sum of positive squares in only one way, i.e., 17651291406336 + 848708932516 = 4201344^2 + 921254^2 .

It is a super-2 number, since 2×18500000338852² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18500000338799 and 18500000338808.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2312500042353 + ... + 2312500042360.

Almost surely, 2^{18500000338852} is an apocalyptic number.

It is an amenable number.

18500000338852 is a deficient number, since it is larger than the sum of its proper divisors (13875000254146).

18500000338852 is a wasteful number, since it uses less digits than its factorization.

18500000338852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4625000084717 (or 4625000084715 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 43.

The spelling of 18500000338852 in words is "eighteen trillion, five hundred billion, three hundred thirty-eight thousand, eight hundred fifty-two".