6564979459 has 2 divisors, whose sum is σ = 6564979460. Its totient is φ = 6564979458.

The previous prime is 6564979453. The next prime is 6564979483. The reversal of 6564979459 is 9549794656.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6564979459 - 2⁷ = 6564979331 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6564979459.

It is not a weakly prime, because it can be changed into another prime (6564979453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3282489729 + 3282489730.

It is an arithmetic number, because the mean of its divisors is an integer number (3282489730).

Almost surely, 2^6564979459 is an apocalyptic number.

6564979459 is a deficient number, since it is larger than the sum of its proper divisors (1).

6564979459 is an equidigital number, since it uses as much as digits as its factorization.

6564979459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73483200, while the sum is 64.

The square root of 6564979459 is about 81024.5608380570. The cubic root of 6564979459 is about 1872.4538557128.

It can be divided in two parts, 6 and 564979459, that added together give a palindrome (564979465).

The spelling of 6564979459 in words is "six billion, five hundred sixty-four million, nine hundred seventy-nine thousand, four hundred fifty-nine".