18324801436 has 12 divisors (see below), whose sum is σ = 32083465960. Its totient is φ = 9158096880.

The previous prime is 18324801419. The next prime is 18324801491. The reversal of 18324801436 is 63410842381.

It is a congruent number.

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, 1066371 + ... + 1083418.

Almost surely, 2^18324801436 is an apocalyptic number.

It is an amenable number.

18324801436 is a deficient number, since it is larger than the sum of its proper divisors (13758664524).

18324801436 is a wasteful number, since it uses less digits than its factorization.

18324801436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151924 (or 2151922 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The spelling of 18324801436 in words is "eighteen billion, three hundred twenty-four million, eight hundred one thousand, four hundred thirty-six".