18465996185 has 24 divisors (see below), whose sum is σ = 27759875976. Its totient is φ = 11688364800.

The previous prime is 18465996179. The next prime is 18465996229. The reversal of 18465996185 is 58169956481.

It can be written as a sum of positive squares in 4 ways, for example, as 558471424 + 17907524761 = 23632^2 + 133819^2 .

It is not a de Polignac number, because 18465996185 - 2²⁰ = 18464947609 is a prime.

It is a Curzon 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 23 ways as a sum of consecutive naturals, for example, 2895716 + ... + 2902085.

It is an arithmetic number, because the mean of its divisors is an integer number (1156661499).

Almost surely, 2^18465996185 is an apocalyptic number.

It is an amenable number.

18465996185 is a deficient number, since it is larger than the sum of its proper divisors (9293879791).

18465996185 is a wasteful number, since it uses less digits than its factorization.

18465996185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5797833 (or 5797826 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 62.

The spelling of 18465996185 in words is "eighteen billion, four hundred sixty-five million, nine hundred ninety-six thousand, one hundred eighty-five".