18838220214573 has 20 divisors (see below), whose sum is σ = 28153625097180. Its totient is φ = 12553199223552.

The previous prime is 18838220214557. The next prime is 18838220214613. The reversal of 18838220214573 is 37541202283881.

18838220214573 is a `hidden beast` number, since 1 + 8 + 8 + 38 + 2 + 20 + 2 + 14 + 573 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5681916040329 + 13156304174244 = 2383677^2 + 3627162^2 .

It is not a de Polignac number, because 18838220214573 - 2⁴ = 18838220214557 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18838220212573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 51801508 + ... + 52163901.

It is an arithmetic number, because the mean of its divisors is an integer number (1407681254859).

Almost surely, 2^{18838220214573} is an apocalyptic number.

It is an amenable number.

18838220214573 is a deficient number, since it is larger than the sum of its proper divisors (9315404882607).

18838220214573 is a wasteful number, since it uses less digits than its factorization.

18838220214573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103967658 (or 103967649 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The spelling of 18838220214573 in words is "eighteen trillion, eight hundred thirty-eight billion, two hundred twenty million, two hundred fourteen thousand, five hundred seventy-three".