6564719464 has 16 divisors (see below), whose sum is σ = 12705909120. Its totient is φ = 3176477040.

The previous prime is 6564719449. The next prime is 6564719489. The reversal of 6564719464 is 4649174656.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13235074 + ... + 13235569.

It is an arithmetic number, because the mean of its divisors is an integer number (794119320).

Almost surely, 2^6564719464 is an apocalyptic number.

It is an amenable number.

6564719464 is a deficient number, since it is larger than the sum of its proper divisors (6141189656).

6564719464 is a wasteful number, since it uses less digits than its factorization.

6564719464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26470680 (or 26470676 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 52.

The square root of 6564719464 is about 81022.9564012570. The cubic root of 6564719464 is about 1872.4291369217.

The spelling of 6564719464 in words is "six billion, five hundred sixty-four million, seven hundred nineteen thousand, four hundred sixty-four".