18086001705 has 48 divisors (see below), whose sum is σ = 32546616960. Its totient is φ = 9529162272.

The previous prime is 18086001649. The next prime is 18086001733. The reversal of 18086001705 is 50710068081.

It is not a de Polignac number, because 18086001705 - 2⁸ = 18086001449 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18086001705.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 920292 + ... + 939738.

It is an arithmetic number, because the mean of its divisors is an integer number (678054520).

Almost surely, 2^18086001705 is an apocalyptic number.

18086001705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18086001705 is a deficient number, since it is larger than the sum of its proper divisors (14460615255).

18086001705 is an equidigital number, since it uses as much as digits as its factorization.

18086001705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19627 (or 19538 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

Adding to 18086001705 its reverse (50710068081), we get a palindrome (68796069786).

The spelling of 18086001705 in words is "eighteen billion, eighty-six million, one thousand, seven hundred five".