18636850653342 has 16 divisors (see below), whose sum is σ = 37274220126720. Its totient is φ = 6212197081112.

The previous prime is 18636850653331. The next prime is 18636850653361. The reversal of 18636850653342 is 24335605863681.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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, 21149742 + ... + 22013297.

It is an arithmetic number, because the mean of its divisors is an integer number (2329638757920).

Almost surely, 2^{18636850653342} is an apocalyptic number.

18636850653342 is an abundant number, since it is smaller than the sum of its proper divisors (18637369473378).

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

18636850653342 is a wasteful number, since it uses less digits than its factorization.

18636850653342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43235007.

The product of its (nonzero) digits is 74649600, while the sum is 60.

The spelling of 18636850653342 in words is "eighteen trillion, six hundred thirty-six billion, eight hundred fifty million, six hundred fifty-three thousand, three hundred forty-two".