18683336867020 has 48 divisors (see below), whose sum is σ = 46051900614720. Its totient is φ = 6232588049664.

The previous prime is 18683336866973. The next prime is 18683336867021. The reversal of 18683336867020 is 2076863338681.

It is a super-3 number, since 3×18683336867020³ (a number of 41 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18683336867020.

It is not an unprimeable number, because it can be changed into a prime (18683336867021) 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, 1803405715 + ... + 1803416074.

It is an arithmetic number, because the mean of its divisors is an integer number (959414596140).

Almost surely, 2^{18683336867020} is an apocalyptic number.

18683336867020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18683336867020 is an abundant number, since it is smaller than the sum of its proper divisors (27368563747700).

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

18683336867020 is a wasteful number, since it uses less digits than its factorization.

18683336867020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3606821842 (or 3606821840 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 61.

The spelling of 18683336867020 in words is "eighteen trillion, six hundred eighty-three billion, three hundred thirty-six million, eight hundred sixty-seven thousand, twenty".