18052440804 has 36 divisors (see below), whose sum is σ = 45756931584. Its totient is φ = 6001079472.

The previous prime is 18052440779. The next prime is 18052440881. The reversal of 18052440804 is 40804425081.

18052440804 is a `hidden beast` number, since 18 + 0 + 524 + 40 + 80 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 669972 + ... + 696395.

Almost surely, 2^18052440804 is an apocalyptic number.

It is an amenable number.

18052440804 is an abundant number, since it is smaller than the sum of its proper divisors (27704490780).

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

18052440804 is a wasteful number, since it uses less digits than its factorization.

18052440804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366744 (or 1366739 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 36.

Adding to 18052440804 its reverse (40804425081), we get a palindrome (58856865885).

The spelling of 18052440804 in words is "eighteen billion, fifty-two million, four hundred forty thousand, eight hundred four".