18683516853352 has 32 divisors (see below), whose sum is σ = 37727013126600. Its totient is φ = 8623005963264.

The previous prime is 18683516853347. The next prime is 18683516853367. The reversal of 18683516853352 is 25335861538681.

It can be written as a sum of positive squares in 4 ways, for example, as 11351953378756 + 7331563474596 = 3369266^2 + 2707686^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4269924 + ... + 7456492.

Almost surely, 2^{18683516853352} is an apocalyptic number.

It is an amenable number.

18683516853352 is an abundant number, since it is smaller than the sum of its proper divisors (19043496273248).

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

18683516853352 is a wasteful number, since it uses less digits than its factorization.

18683516853352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3242965 (or 3242961 counting only the distinct ones).

The product of its digits is 124416000, while the sum is 64.

The spelling of 18683516853352 in words is "eighteen trillion, six hundred eighty-three billion, five hundred sixteen million, eight hundred fifty-three thousand, three hundred fifty-two".