2668612756 has 12 divisors (see below), whose sum is σ = 4783976820. Its totient is φ = 1301762240.

The previous prime is 2668612721. The next prime is 2668612759. The reversal of 2668612756 is 6572168662.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 299843856 + 2368768900 = 17316^2 + 48670^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2668612759) 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 3 ways as a sum of consecutive naturals, for example, 8135851 + ... + 8136178.

It is an arithmetic number, because the mean of its divisors is an integer number (398664735).

Almost surely, 2^2668612756 is an apocalyptic number.

It is an amenable number.

2668612756 is a deficient number, since it is larger than the sum of its proper divisors (2115364064).

2668612756 is a wasteful number, since it uses less digits than its factorization.

2668612756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16272074 (or 16272072 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 49.

The square root of 2668612756 is about 51658.6174418170. The cubic root of 2668612756 is about 1387.0598024189.

The spelling of 2668612756 in words is "two billion, six hundred sixty-eight million, six hundred twelve thousand, seven hundred fifty-six".