2118688585 has 16 divisors (see below), whose sum is σ = 2857042944. Its totient is φ = 1496544192.

The previous prime is 2118688553. The next prime is 2118688589. The reversal of 2118688585 is 5858868112.

It is not a de Polignac number, because 2118688585 - 2⁵ = 2118688553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2118688589) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 707097 + ... + 710086.

It is an arithmetic number, because the mean of its divisors is an integer number (178565184).

Almost surely, 2^2118688585 is an apocalyptic number.

It is an amenable number.

2118688585 is a deficient number, since it is larger than the sum of its proper divisors (738354359).

2118688585 is a wasteful number, since it uses less digits than its factorization.

2118688585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417224.

The product of its digits is 1228800, while the sum is 52.

The square root of 2118688585 is about 46029.2144729844. The cubic root of 2118688585 is about 1284.3667154605.

The spelling of 2118688585 in words is "two billion, one hundred eighteen million, six hundred eighty-eight thousand, five hundred eighty-five".