6568687968 has 48 divisors (see below), whose sum is σ = 17285906736. Its totient is φ = 2184089600.

The previous prime is 6568687943. The next prime is 6568687981. The reversal of 6568687968 is 8697868656.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46821 + ... + 123812.

It is an arithmetic number, because the mean of its divisors is an integer number (360123057).

Almost surely, 2^6568687968 is an apocalyptic number.

It is an amenable number.

6568687968 is an abundant number, since it is smaller than the sum of its proper divisors (10717218768).

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

6568687968 is a wasteful number, since it uses less digits than its factorization.

6568687968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171047 (or 171039 counting only the distinct ones).

The product of its digits is 209018880, while the sum is 69.

The square root of 6568687968 is about 81047.4426987058. The cubic root of 6568687968 is about 1872.8063678513.

The spelling of 6568687968 in words is "six billion, five hundred sixty-eight million, six hundred eighty-seven thousand, nine hundred sixty-eight".