6513564959 has 8 divisors (see below), whose sum is σ = 7118704128. Its totient is φ = 5910591960.

The previous prime is 6513564899. The next prime is 6513564979. The reversal of 6513564959 is 9594653156.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6513564959 - 2¹⁶ = 6513499423 is a prime.

It is a super-2 number, since 2×6513564959² = 84853056950225343362, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6513564959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6513564979) by changing a digit.

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, 535247 + ... + 547280.

It is an arithmetic number, because the mean of its divisors is an integer number (889838016).

Almost surely, 2^6513564959 is an apocalyptic number.

6513564959 is a deficient number, since it is larger than the sum of its proper divisors (605139169).

6513564959 is a wasteful number, since it uses less digits than its factorization.

6513564959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1083085.

The product of its digits is 4374000, while the sum is 53.

The square root of 6513564959 is about 80706.6599420395. The cubic root of 6513564959 is about 1867.5529163687.

The spelling of 6513564959 in words is "six billion, five hundred thirteen million, five hundred sixty-four thousand, nine hundred fifty-nine".