18364693145826 has 64 divisors (see below), whose sum is σ = 37392393830400. Its totient is φ = 6012341064576.

The previous prime is 18364693145807. The next prime is 18364693145873. The reversal of 18364693145826 is 62854139646381.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30114870 + ... + 30718638.

It is an arithmetic number, because the mean of its divisors is an integer number (584256153600).

Almost surely, 2^{18364693145826} is an apocalyptic number.

18364693145826 is an abundant number, since it is smaller than the sum of its proper divisors (19027700684574).

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

18364693145826 is a wasteful number, since it uses less digits than its factorization.

18364693145826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604303.

The product of its digits is 179159040, while the sum is 66.

The spelling of 18364693145826 in words is "eighteen trillion, three hundred sixty-four billion, six hundred ninety-three million, one hundred forty-five thousand, eight hundred twenty-six".