18922420502424 has 48 divisors (see below), whose sum is σ = 53476405772400. Its totient is φ = 6033235521984.

The previous prime is 18922420502399. The next prime is 18922420502441. The reversal of 18922420502424 is 42420502422981.

It is a happy number.

18922420502424 is a `hidden beast` number, since 1 + 89 + 2 + 2 + 4 + 20 + 502 + 42 + 4 = 666.

It is a super-2 number, since 2×18922420502424² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18922420502424.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5713289559 + ... + 5713292870.

It is an arithmetic number, because the mean of its divisors is an integer number (1114091786925).

Almost surely, 2^{18922420502424} is an apocalyptic number.

It is an amenable number.

18922420502424 is an abundant number, since it is smaller than the sum of its proper divisors (34553985269976).

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

18922420502424 is a wasteful number, since it uses less digits than its factorization.

18922420502424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11426582464 (or 11426582457 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 45.

The spelling of 18922420502424 in words is "eighteen trillion, nine hundred twenty-two billion, four hundred twenty million, five hundred two thousand, four hundred twenty-four".