2668412817 has 12 divisors (see below), whose sum is σ = 4404999040. Its totient is φ = 1524807288.

The previous prime is 2668412777. The next prime is 2668412821. The reversal of 2668412817 is 7182148662.

It is not a de Polignac number, because 2668412817 - 2⁸ = 2668412561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2668412897) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21177817 + ... + 21177942.

Almost surely, 2^2668412817 is an apocalyptic number.

It is an amenable number.

2668412817 is a deficient number, since it is larger than the sum of its proper divisors (1736586223).

2668412817 is a wasteful number, since it uses less digits than its factorization.

2668412817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42355772 (or 42355769 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 2668412817 is about 51656.6822105330. The cubic root of 2668412817 is about 1387.0251609152.

The spelling of 2668412817 in words is "two billion, six hundred sixty-eight million, four hundred twelve thousand, eight hundred seventeen".