18583436912 has 20 divisors (see below), whose sum is σ = 36017842776. Its totient is φ = 9288509760.

The previous prime is 18583436881. The next prime is 18583436929. The reversal of 18583436912 is 21963438581.

It is a happy number.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152414 + ... + 245757.

Almost surely, 2^18583436912 is an apocalyptic number.

It is an amenable number.

18583436912 is a deficient number, since it is larger than the sum of its proper divisors (17434405864).

18583436912 is a wasteful number, since it uses less digits than its factorization.

18583436912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401096 (or 401090 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 50.

The spelling of 18583436912 in words is "eighteen billion, five hundred eighty-three million, four hundred thirty-six thousand, nine hundred twelve".