6568726878 has 48 divisors (see below), whose sum is σ = 16281223296. Its totient is φ = 1874955600.

The previous prime is 6568726861. The next prime is 6568726919. The reversal of 6568726878 is 8786278656.

6568726878 is a `hidden beast` number, since 6 + 568 + 7 + 2 + 68 + 7 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 107625 + ... + 157227.

It is an arithmetic number, because the mean of its divisors is an integer number (339192152).

Almost surely, 2^6568726878 is an apocalyptic number.

6568726878 is an abundant number, since it is smaller than the sum of its proper divisors (9712496418).

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

6568726878 is a wasteful number, since it uses less digits than its factorization.

6568726878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50669 (or 50666 counting only the distinct ones).

The product of its digits is 54190080, while the sum is 63.

The square root of 6568726878 is about 81047.6827429384. The cubic root of 6568726878 is about 1872.8100657360.

The spelling of 6568726878 in words is "six billion, five hundred sixty-eight million, seven hundred twenty-six thousand, eight hundred seventy-eight".