6512864464 has 20 divisors (see below), whose sum is σ = 12672839556. Its totient is φ = 3242454272.

The previous prime is 6512864461. The next prime is 6512864467. The reversal of 6512864464 is 4644682156.

It is an interprime number because it is at equal distance from previous prime (6512864461) and next prime (6512864467).

It can be written as a sum of positive squares in 2 ways, for example, as 2456193600 + 4056670864 = 49560^2 + 63692^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6512864461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 869779 + ... + 877234.

Almost surely, 2^6512864464 is an apocalyptic number.

It is an amenable number.

6512864464 is a deficient number, since it is larger than the sum of its proper divisors (6159975092).

6512864464 is a wasteful number, since it uses less digits than its factorization.

6512864464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1747254 (or 1747248 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 46.

The square root of 6512864464 is about 80702.3200657825. The cubic root of 6512864464 is about 1867.4859659154.

The spelling of 6512864464 in words is "six billion, five hundred twelve million, eight hundred sixty-four thousand, four hundred sixty-four".