18258742476 has 36 divisors (see below), whose sum is σ = 49704355792. Its totient is φ = 5618074464.

The previous prime is 18258742457. The next prime is 18258742507. The reversal of 18258742476 is 67424785281.

18258742476 is a `hidden beast` number, since 1 + 82 + 58 + 7 + 42 + 476 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×18258742476² (a number of 21 digits) contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 19506736 + ... + 19507671.

Almost surely, 2^18258742476 is an apocalyptic number.

It is an amenable number.

18258742476 is an abundant number, since it is smaller than the sum of its proper divisors (31445613316).

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

18258742476 is a wasteful number, since it uses less digits than its factorization.

18258742476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39014430 (or 39014425 counting only the distinct ones).

The product of its digits is 6021120, while the sum is 54.

The spelling of 18258742476 in words is "eighteen billion, two hundred fifty-eight million, seven hundred forty-two thousand, four hundred seventy-six".