18900000585 has 24 divisors (see below), whose sum is σ = 32767223424. Its totient is φ = 10077778080.

The previous prime is 18900000577. The next prime is 18900000677. The reversal of 18900000585 is 58500000981.

It is not a de Polignac number, because 18900000585 - 2³ = 18900000577 is a prime.

It is a super-2 number, since 2×18900000585² (a number of 21 digits) contains 22 as substring.

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, 171330 + ... + 259140.

It is an arithmetic number, because the mean of its divisors is an integer number (1365300976).

Almost surely, 2^18900000585 is an apocalyptic number.

18900000585 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18900000585 is a deficient number, since it is larger than the sum of its proper divisors (13867222839).

18900000585 is a wasteful number, since it uses less digits than its factorization.

18900000585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92605 (or 92602 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 36.

The spelling of 18900000585 in words is "eighteen billion, nine hundred million, five hundred eighty-five", and thus it is an aban number.