6568958964 has 12 divisors (see below), whose sum is σ = 15327570944. Its totient is φ = 2189652984.

The previous prime is 6568958917. The next prime is 6568958969. The reversal of 6568958964 is 4698598656.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 6568958895 and 6568958904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6568958969) 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, 273706612 + ... + 273706635.

Almost surely, 2^6568958964 is an apocalyptic number.

It is an amenable number.

6568958964 is an abundant number, since it is smaller than the sum of its proper divisors (8758611980).

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

6568958964 is a wasteful number, since it uses less digits than its factorization.

6568958964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547413254 (or 547413252 counting only the distinct ones).

The product of its digits is 111974400, while the sum is 66.

The square root of 6568958964 is about 81049.1145170630. The cubic root of 6568958964 is about 1872.8321221601.

The spelling of 6568958964 in words is "six billion, five hundred sixty-eight million, nine hundred fifty-eight thousand, nine hundred sixty-four".