18538350050185 has 16 divisors (see below), whose sum is σ = 25657270848000. Its totient is φ = 12595387502016.

The previous prime is 18538350050137. The next prime is 18538350050249. The reversal of 18538350050185 is 58105005383581.

It is a cyclic number.

It is not a de Polignac number, because 18538350050185 - 2⁷ = 18538350050057 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2429661985 + ... + 2429669614.

It is an arithmetic number, because the mean of its divisors is an integer number (1603579428000).

Almost surely, 2^{18538350050185} is an apocalyptic number.

It is an amenable number.

18538350050185 is a deficient number, since it is larger than the sum of its proper divisors (7118920797815).

18538350050185 is a wasteful number, since it uses less digits than its factorization.

18538350050185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4859331720.

The product of its (nonzero) digits is 2880000, while the sum is 52.

The spelling of 18538350050185 in words is "eighteen trillion, five hundred thirty-eight billion, three hundred fifty million, fifty thousand, one hundred eighty-five".