18045874287 has 48 divisors (see below), whose sum is σ = 30771220480. Its totient is φ = 9972720000.

The previous prime is 18045874279. The next prime is 18045874291. The reversal of 18045874287 is 78247854081.

18045874287 is a `hidden beast` number, since 18 + 0 + 4 + 587 + 42 + 8 + 7 = 666.

It is not a de Polignac number, because 18045874287 - 2³ = 18045874279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18045874087) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5859414 + ... + 5862492.

Almost surely, 2^18045874287 is an apocalyptic number.

18045874287 is a deficient number, since it is larger than the sum of its proper divisors (12725346193).

18045874287 is a wasteful number, since it uses less digits than its factorization.

18045874287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6124 (or 6121 counting only the distinct ones).

The product of its (nonzero) digits is 4014080, while the sum is 54.

The spelling of 18045874287 in words is "eighteen billion, forty-five million, eight hundred seventy-four thousand, two hundred eighty-seven".