2668285685 has 16 divisors (see below), whose sum is σ = 3459150576. Its totient is φ = 1964195328.

The previous prime is 2668285681. The next prime is 2668285687. The reversal of 2668285685 is 5865828662.

It can be written as a sum of positive squares in 8 ways, for example, as 1394723716 + 1273561969 = 37346^2 + 35687^2 .

It is a cyclic number.

It is not a de Polignac number, because 2668285685 - 2² = 2668285681 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2668285685.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2668285681) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 44144 + ... + 85353.

It is an arithmetic number, because the mean of its divisors is an integer number (216196911).

Almost surely, 2^2668285685 is an apocalyptic number.

It is an amenable number.

2668285685 is a deficient number, since it is larger than the sum of its proper divisors (790864891).

2668285685 is a wasteful number, since it uses less digits than its factorization.

2668285685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129832.

The product of its digits is 11059200, while the sum is 56.

The square root of 2668285685 is about 51655.4516483982. The cubic root of 2668285685 is about 1387.0031330787.

The spelling of 2668285685 in words is "two billion, six hundred sixty-eight million, two hundred eighty-five thousand, six hundred eighty-five".