2668005808 has 20 divisors (see below), whose sum is σ = 5566897168. Its totient is φ = 1231387200.

The previous prime is 2668005803. The next prime is 2668005811. The reversal of 2668005808 is 8085008662.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2668005803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6413268 + ... + 6413683.

Almost surely, 2^2668005808 is an apocalyptic number.

It is an amenable number.

2668005808 is an abundant number, since it is smaller than the sum of its proper divisors (2898891360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2668005808 is a wasteful number, since it uses less digits than its factorization.

2668005808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12826972 (or 12826966 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 43.

The square root of 2668005808 is about 51652.7425022138. The cubic root of 2668005808 is about 1386.9546370411.

The spelling of 2668005808 in words is "two billion, six hundred sixty-eight million, five thousand, eight hundred eight".