2568681356 has 12 divisors (see below), whose sum is σ = 4536433440. Its totient is φ = 1272557520.

The previous prime is 2568681343. The next prime is 2568681361. The reversal of 2568681356 is 6531868652.

It is an unprimeable number.

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, 2945300 + ... + 2946171.

It is an arithmetic number, because the mean of its divisors is an integer number (378036120).

Almost surely, 2^2568681356 is an apocalyptic number.

It is an amenable number.

2568681356 is a deficient number, since it is larger than the sum of its proper divisors (1967752084).

2568681356 is a wasteful number, since it uses less digits than its factorization.

2568681356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5891584 (or 5891582 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 50.

The square root of 2568681356 is about 50682.1601354954. The cubic root of 2568681356 is about 1369.5253574482.

The spelling of 2568681356 in words is "two billion, five hundred sixty-eight million, six hundred eighty-one thousand, three hundred fifty-six".