18636143674112 has 54 divisors (see below), whose sum is σ = 39516413315988. Its totient is φ = 8769949929472.

The previous prime is 18636143674111. The next prime is 18636143674199. The reversal of 18636143674112 is 21147634163681.

It is not an unprimeable number, because it can be changed into a prime (18636143674111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 125873138 + ... + 126021105.

Almost surely, 2^{18636143674112} is an apocalyptic number.

It is an amenable number.

18636143674112 is an abundant number, since it is smaller than the sum of its proper divisors (20880269641876).

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

18636143674112 is an equidigital number, since it uses as much as digits as its factorization.

18636143674112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251894293 (or 251894262 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 53.

The spelling of 18636143674112 in words is "eighteen trillion, six hundred thirty-six billion, one hundred forty-three million, six hundred seventy-four thousand, one hundred twelve".