18822268242 has 42 divisors (see below), whose sum is σ = 42342523797. Its totient is φ = 6272343216.

The previous prime is 18822268229. The next prime is 18822268303. The reversal of 18822268242 is 24286222881.

18822268242 is a `hidden beast` number, since 188 + 2 + 226 + 8 + 242 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18174005721 + 648262521 = 134811^2 + 25461^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=97011.

It is an unprimeable number.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 5236798 + ... + 5240390.

Almost surely, 2^18822268242 is an apocalyptic number.

18822268242 is an abundant number, since it is smaller than the sum of its proper divisors (23520255555).

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

18822268242 is an frugal number, since it uses more digits than its factorization.

18822268242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7206 (or 3598 counting only the distinct ones).

The product of its digits is 393216, while the sum is 45.

The spelling of 18822268242 in words is "eighteen billion, eight hundred twenty-two million, two hundred sixty-eight thousand, two hundred forty-two".