2086117218 has 12 divisors (see below), whose sum is σ = 4519920678. Its totient is φ = 695372400.

The previous prime is 2086117207. The next prime is 2086117301. The reversal of 2086117218 is 8127116802.

2086117218 is a `hidden beast` number, since 20 + 8 + 611 + 7 + 2 + 18 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2068703289 + 17413929 = 45483^2 + 4173^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57947683 + ... + 57947718.

Almost surely, 2^2086117218 is an apocalyptic number.

2086117218 is an abundant number, since it is smaller than the sum of its proper divisors (2433803460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2086117218 is a wasteful number, since it uses less digits than its factorization.

2086117218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115895409 (or 115895406 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

The square root of 2086117218 is about 45674.0322064956. The cubic root of 2086117218 is about 1277.7510186714.

The spelling of 2086117218 in words is "two billion, eighty-six million, one hundred seventeen thousand, two hundred eighteen".