18183777328 has 40 divisors (see below), whose sum is σ = 37233241920. Its totient is φ = 8579016000.

The previous prime is 18183777319. The next prime is 18183777331. The reversal of 18183777328 is 82377738181.

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 7 ways as a sum of consecutive naturals, for example, 42850 + ... + 195457.

It is an arithmetic number, because the mean of its divisors is an integer number (930831048).

Almost surely, 2^18183777328 is an apocalyptic number.

It is an amenable number.

18183777328 is an abundant number, since it is smaller than the sum of its proper divisors (19049464592).

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

18183777328 is a wasteful number, since it uses less digits than its factorization.

18183777328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238585 (or 238579 counting only the distinct ones).

The product of its digits is 3161088, while the sum is 55.

The spelling of 18183777328 in words is "eighteen billion, one hundred eighty-three million, seven hundred seventy-seven thousand, three hundred twenty-eight".