2136688905 has 64 divisors (see below), whose sum is σ = 3800079360. Its totient is φ = 1018607616.

The previous prime is 2136688859. The next prime is 2136688927. The reversal of 2136688905 is 5098866312.

It is a happy number.

It is not a de Polignac number, because 2136688905 - 2⁸ = 2136688649 is a prime.

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 63 ways as a sum of consecutive naturals, for example, 815157 + ... + 817773.

It is an arithmetic number, because the mean of its divisors is an integer number (59376240).

Almost surely, 2^2136688905 is an apocalyptic number.

It is an amenable number.

2136688905 is a deficient number, since it is larger than the sum of its proper divisors (1663390455).

2136688905 is a wasteful number, since it uses less digits than its factorization.

2136688905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770.

The product of its (nonzero) digits is 622080, while the sum is 48.

The square root of 2136688905 is about 46224.3323910687. The cubic root of 2136688905 is about 1287.9937777386.

The spelling of 2136688905 in words is "two billion, one hundred thirty-six million, six hundred eighty-eight thousand, nine hundred five".