18881475194022 has 64 divisors (see below), whose sum is σ = 44698194938880. Its totient is φ = 5202576215424.

The previous prime is 18881475194009. The next prime is 18881475194053. The reversal of 18881475194022 is 22049157418881.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8047818 + ... + 10125725.

It is an arithmetic number, because the mean of its divisors is an integer number (698409295920).

Almost surely, 2^{18881475194022} is an apocalyptic number.

18881475194022 is an abundant number, since it is smaller than the sum of its proper divisors (25816719744858).

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

18881475194022 is a wasteful number, since it uses less digits than its factorization.

18881475194022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18174437.

The product of its (nonzero) digits is 10321920, while the sum is 60.

The spelling of 18881475194022 in words is "eighteen trillion, eight hundred eighty-one billion, four hundred seventy-five million, one hundred ninety-four thousand, twenty-two".