18044025508608 has 72 divisors (see below), whose sum is σ = 52389187722816. Its totient is φ = 5467886515200.

The previous prime is 18044025508603. The next prime is 18044025508609. The reversal of 18044025508608 is 80680552044081.

It is not an unprimeable number, because it can be changed into a prime (18044025508603) 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, 1067938138 + ... + 1067955033.

Almost surely, 2^{18044025508608} is an apocalyptic number.

It is an amenable number.

18044025508608 is an abundant number, since it is smaller than the sum of its proper divisors (34345162214208).

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

18044025508608 is a wasteful number, since it uses less digits than its factorization.

18044025508608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135893201 (or 2135893187 counting only the distinct ones).

The product of its (nonzero) digits is 2457600, while the sum is 51.

The spelling of 18044025508608 in words is "eighteen trillion, forty-four billion, twenty-five million, five hundred eight thousand, six hundred eight".