18184036368 has 40 divisors (see below), whose sum is σ = 46996375968. Its totient is φ = 6058642432.

The previous prime is 18184036319. The next prime is 18184036379. The reversal of 18184036368 is 86363048181.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25771 + ... + 192437.

Almost surely, 2^18184036368 is an apocalyptic number.

It is an amenable number.

18184036368 is an abundant number, since it is smaller than the sum of its proper divisors (28812339600).

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

18184036368 is a wasteful number, since it uses less digits than its factorization.

18184036368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168951 (or 168945 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The spelling of 18184036368 in words is "eighteen billion, one hundred eighty-four million, thirty-six thousand, three hundred sixty-eight".