18587645058 has 16 divisors (see below), whose sum is σ = 37177227360. Its totient is φ = 6195558816.

The previous prime is 18587645051. The next prime is 18587645059. The reversal of 18587645058 is 85054678581.

It is a junction number, because it is equal to n+sod(n) for n = 18587644989 and 18587645007.

It is not an unprimeable number, because it can be changed into a prime (18587645051) 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, 63966 + ... + 203142.

It is an arithmetic number, because the mean of its divisors is an integer number (2323576710).

Almost surely, 2^18587645058 is an apocalyptic number.

18587645058 is an abundant number, since it is smaller than the sum of its proper divisors (18589582302).

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

18587645058 is a wasteful number, since it uses less digits than its factorization.

18587645058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161441.

The product of its (nonzero) digits is 10752000, while the sum is 57.

The spelling of 18587645058 in words is "eighteen billion, five hundred eighty-seven million, six hundred forty-five thousand, fifty-eight".