18422005256 has 32 divisors (see below), whose sum is σ = 38498004000. Its totient is φ = 8212905216.

The previous prime is 18422005207. The next prime is 18422005267. The reversal of 18422005256 is 65250022481.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3562046 + ... + 3567213.

It is an arithmetic number, because the mean of its divisors is an integer number (1203062625).

Almost surely, 2^18422005256 is an apocalyptic number.

It is an amenable number.

18422005256 is an abundant number, since it is smaller than the sum of its proper divisors (20075998744).

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

18422005256 is a wasteful number, since it uses less digits than its factorization.

18422005256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7129301 (or 7129297 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The spelling of 18422005256 in words is "eighteen billion, four hundred twenty-two million, five thousand, two hundred fifty-six".