18399627437412 has 48 divisors (see below), whose sum is σ = 46925035328192. Its totient is φ = 5576924960640.

The previous prime is 18399627437333. The next prime is 18399627437413. The reversal of 18399627437412 is 21473472699381.

It is not an unprimeable number, because it can be changed into a prime (18399627437413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 880186039 + ... + 880206942.

Almost surely, 2^{18399627437412} is an apocalyptic number.

18399627437412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

18399627437412 is an abundant number, since it is smaller than the sum of its proper divisors (28525407890780).

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

18399627437412 is a wasteful number, since it uses less digits than its factorization.

18399627437412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760393068 (or 1760393066 counting only the distinct ones).

The product of its digits is 109734912, while the sum is 66.

The spelling of 18399627437412 in words is "eighteen trillion, three hundred ninety-nine billion, six hundred twenty-seven million, four hundred thirty-seven thousand, four hundred twelve".