18638162711246 has 32 divisors (see below), whose sum is σ = 30859561268928. Its totient is φ = 8389384174080.

The previous prime is 18638162711227. The next prime is 18638162711263. The reversal of 18638162711246 is 64211726183681.

It is a super-2 number, since 2×18638162711246² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18638162711191 and 18638162711200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40265435 + ... + 40725686.

It is an arithmetic number, because the mean of its divisors is an integer number (964361289654).

Almost surely, 2^{18638162711246} is an apocalyptic number.

18638162711246 is a deficient number, since it is larger than the sum of its proper divisors (12221398557682).

18638162711246 is a wasteful number, since it uses less digits than its factorization.

18638162711246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80991356.

The product of its digits is 4644864, while the sum is 56.

The spelling of 18638162711246 in words is "eighteen trillion, six hundred thirty-eight billion, one hundred sixty-two million, seven hundred eleven thousand, two hundred forty-six".