2668694208 has 56 divisors (see below), whose sum is σ = 7225149888. Its totient is φ = 868874496.

The previous prime is 2668694207. The next prime is 2668694243. The reversal of 2668694208 is 8024968662.

It is not an unprimeable number, because it can be changed into a prime (2668694201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153366 + ... + 169877.

Almost surely, 2^2668694208 is an apocalyptic number.

It is an amenable number.

2668694208 is an abundant number, since it is smaller than the sum of its proper divisors (4556455680).

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

2668694208 is a wasteful number, since it uses less digits than its factorization.

2668694208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323301 (or 323291 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 51.

The square root of 2668694208 is about 51659.4058037837. The cubic root of 2668694208 is about 1387.0739143259.

The spelling of 2668694208 in words is "two billion, six hundred sixty-eight million, six hundred ninety-four thousand, two hundred eight".