18580025344 has 26 divisors (see below), whose sum is σ = 37155522740. Its totient is φ = 9290010624.

The previous prime is 18580025327. The next prime is 18580025357. The reversal of 18580025344 is 44352008581.

It is a junction number, because it is equal to n+sod(n) for n = 18580025297 and 18580025306.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2263974 + ... + 2272165.

Almost surely, 2^18580025344 is an apocalyptic number.

It is an amenable number.

18580025344 is a deficient number, since it is larger than the sum of its proper divisors (18575497396).

18580025344 is an frugal number, since it uses more digits than its factorization.

18580025344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4536163 (or 4536141 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The spelling of 18580025344 in words is "eighteen billion, five hundred eighty million, twenty-five thousand, three hundred forty-four".