18514208185 has 48 divisors (see below), whose sum is σ = 25150483008. Its totient is φ = 13064388480.

The previous prime is 18514208161. The next prime is 18514208191. The reversal of 18514208185 is 58180241581.

It is not a de Polignac number, because 18514208185 - 2¹³ = 18514199993 is a prime.

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 47 ways as a sum of consecutive naturals, for example, 9915622 + ... + 9917488.

It is an arithmetic number, because the mean of its divisors is an integer number (523968396).

Almost surely, 2^18514208185 is an apocalyptic number.

It is an amenable number.

18514208185 is a deficient number, since it is larger than the sum of its proper divisors (6636274823).

18514208185 is a wasteful number, since it uses less digits than its factorization.

18514208185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2374 (or 2363 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 43.

The spelling of 18514208185 in words is "eighteen billion, five hundred fourteen million, two hundred eight thousand, one hundred eighty-five".