2684959685 has 16 divisors (see below), whose sum is σ = 3416420592. Its totient is φ = 2018688000.

The previous prime is 2684959681. The next prime is 2684959691. The reversal of 2684959685 is 5869594862.

It can be written as a sum of positive squares in 8 ways, for example, as 675948001 + 2009011684 = 25999^2 + 44822^2 .

It is not a de Polignac number, because 2684959685 - 2² = 2684959681 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2684959681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37055 + ... + 82115.

It is an arithmetic number, because the mean of its divisors is an integer number (213526287).

Almost surely, 2^2684959685 is an apocalyptic number.

It is an amenable number.

2684959685 is a deficient number, since it is larger than the sum of its proper divisors (731460907).

2684959685 is a wasteful number, since it uses less digits than its factorization.

2684959685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45784.

The product of its digits is 37324800, while the sum is 62.

The square root of 2684959685 is about 51816.5966173001. The cubic root of 2684959685 is about 1389.8862431274.

The spelling of 2684959685 in words is "two billion, six hundred eighty-four million, nine hundred fifty-nine thousand, six hundred eighty-five".