18188034365 has 16 divisors (see below), whose sum is σ = 21939863040. Its totient is φ = 14474349120.

The previous prime is 18188034311. The next prime is 18188034391. The reversal of 18188034365 is 56343088181.

It is a de Polignac number, because none of the positive numbers 2^k-18188034365 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 3572852 + ... + 3577938.

It is an arithmetic number, because the mean of its divisors is an integer number (1371241440).

Almost surely, 2^18188034365 is an apocalyptic number.

It is an amenable number.

18188034365 is a deficient number, since it is larger than the sum of its proper divisors (3751828675).

18188034365 is a wasteful number, since it uses less digits than its factorization.

18188034365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8692.

The product of its (nonzero) digits is 552960, while the sum is 47.

The spelling of 18188034365 in words is "eighteen billion, one hundred eighty-eight million, thirty-four thousand, three hundred sixty-five".