6563868264 has 32 divisors (see below), whose sum is σ = 18232968000. Its totient is φ = 2187956016.

The previous prime is 6563868247. The next prime is 6563868277. The reversal of 6563868264 is 4628683656.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 6563868264.

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 7 ways as a sum of consecutive naturals, for example, 15193924 + ... + 15194355.

It is an arithmetic number, because the mean of its divisors is an integer number (569780250).

Almost surely, 2^6563868264 is an apocalyptic number.

It is an amenable number.

6563868264 is an abundant number, since it is smaller than the sum of its proper divisors (11669099736).

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

6563868264 is a wasteful number, since it uses less digits than its factorization.

6563868264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30388294 (or 30388284 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 54.

The square root of 6563868264 is about 81017.7033987017. The cubic root of 6563868264 is about 1872.3482052799.

The spelling of 6563868264 in words is "six billion, five hundred sixty-three million, eight hundred sixty-eight thousand, two hundred sixty-four".