18269304608 has 24 divisors (see below), whose sum is σ = 36045743580. Its totient is φ = 9114830080.

The previous prime is 18269304587. The next prime is 18269304611. The reversal of 18269304608 is 80640396281.

It can be written as a sum of positive squares in 2 ways, for example, as 17798761744 + 470542864 = 133412^2 + 21692^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 604463 + ... + 633966.

Almost surely, 2^18269304608 is an apocalyptic number.

It is an amenable number.

18269304608 is a deficient number, since it is larger than the sum of its proper divisors (17776438972).

18269304608 is a wasteful number, since it uses less digits than its factorization.

18269304608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238900 (or 1238892 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 47.

The spelling of 18269304608 in words is "eighteen billion, two hundred sixty-nine million, three hundred four thousand, six hundred eight".