2668302657 has 24 divisors (see below), whose sum is σ = 4072723200. Its totient is φ = 1679977728.

The previous prime is 2668302647. The next prime is 2668302667. The reversal of 2668302657 is 7562038662.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2668302647) and next prime (2668302667).

It is not a de Polignac number, because 2668302657 - 2⁴ = 2668302641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2668302647) 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 23 ways as a sum of consecutive naturals, for example, 65232 + ... + 97937.

It is an arithmetic number, because the mean of its divisors is an integer number (169696800).

Almost surely, 2^2668302657 is an apocalyptic number.

It is an amenable number.

2668302657 is a deficient number, since it is larger than the sum of its proper divisors (1404420543).

2668302657 is a wasteful number, since it uses less digits than its factorization.

2668302657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163277 (or 163274 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The square root of 2668302657 is about 51655.6159289578. The cubic root of 2668302657 is about 1387.0060738142.

The spelling of 2668302657 in words is "two billion, six hundred sixty-eight million, three hundred two thousand, six hundred fifty-seven".