18415875422 has 16 divisors (see below), whose sum is σ = 31576646880. Its totient is φ = 7890874368.

The previous prime is 18415875383. The next prime is 18415875449. The reversal of 18415875422 is 22457851481.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66083 + ... + 202974.

It is an arithmetic number, because the mean of its divisors is an integer number (1973540430).

Almost surely, 2^18415875422 is an apocalyptic number.

18415875422 is a deficient number, since it is larger than the sum of its proper divisors (13160771458).

18415875422 is a wasteful number, since it uses less digits than its factorization.

18415875422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273955.

The product of its digits is 716800, while the sum is 47.

The spelling of 18415875422 in words is "eighteen billion, four hundred fifteen million, eight hundred seventy-five thousand, four hundred twenty-two".