18557275068 has 24 divisors (see below), whose sum is σ = 48111454160. Its totient is φ = 6185758320.

The previous prime is 18557275067. The next prime is 18557275109. The reversal of 18557275068 is 86057275581.

18557275068 is a `hidden beast` number, since 1 + 8 + 5 + 572 + 7 + 5 + 0 + 68 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18557275063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85913203 + ... + 85913418.

Almost surely, 2^18557275068 is an apocalyptic number.

18557275068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18557275068 is an abundant number, since it is smaller than the sum of its proper divisors (29554179092).

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

18557275068 is a wasteful number, since it uses less digits than its factorization.

18557275068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171826634 (or 171826626 counting only the distinct ones).

The product of its (nonzero) digits is 4704000, while the sum is 54.

The spelling of 18557275068 in words is "eighteen billion, five hundred fifty-seven million, two hundred seventy-five thousand, sixty-eight".