18422722458 has 80 divisors (see below), whose sum is σ = 48275050560. Its totient is φ = 5141211264.

The previous prime is 18422722427. The next prime is 18422722541. The reversal of 18422722458 is 85422722481.

18422722458 is a `hidden beast` number, since 184 + 227 + 2 + 245 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 140143 + ... + 237666.

It is an arithmetic number, because the mean of its divisors is an integer number (603438132).

Almost surely, 2^18422722458 is an apocalyptic number.

18422722458 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

18422722458 is an abundant number, since it is smaller than the sum of its proper divisors (29852328102).

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

18422722458 is a wasteful number, since it uses less digits than its factorization.

18422722458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377873 (or 377864 counting only the distinct ones).

The product of its digits is 573440, while the sum is 45.

The spelling of 18422722458 in words is "eighteen billion, four hundred twenty-two million, seven hundred twenty-two thousand, four hundred fifty-eight".