18045783724 has 12 divisors (see below), whose sum is σ = 31581159624. Its totient is φ = 9022595264.

The previous prime is 18045783709. The next prime is 18045783737. The reversal of 18045783724 is 42738754081.

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, 118167 + ... + 223729.

It is an arithmetic number, because the mean of its divisors is an integer number (2631763302).

Almost surely, 2^18045783724 is an apocalyptic number.

It is an amenable number.

18045783724 is a deficient number, since it is larger than the sum of its proper divisors (13535375900).

18045783724 is a wasteful number, since it uses less digits than its factorization.

18045783724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148304 (or 148302 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 49.

The spelling of 18045783724 in words is "eighteen billion, forty-five million, seven hundred eighty-three thousand, seven hundred twenty-four".