6512686336 has 72 divisors (see below), whose sum is σ = 14451766784. Its totient is φ = 2908846080.

The previous prime is 6512686319. The next prime is 6512686381. The reversal of 6512686336 is 6336862156.

It is a super-2 number, since 2×6512686336² = 84830166622242209792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 71605 + ... + 134731.

Almost surely, 2^6512686336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6512686336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7225883392).

6512686336 is an abundant number, since it is smaller than the sum of its proper divisors (7939080448).

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

6512686336 is a wasteful number, since it uses less digits than its factorization.

6512686336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63187 (or 63173 counting only the distinct ones).

The product of its digits is 933120, while the sum is 46.

The square root of 6512686336 is about 80701.2164468417. The cubic root of 6512686336 is about 1867.4689404025.

The spelling of 6512686336 in words is "six billion, five hundred twelve million, six hundred eighty-six thousand, three hundred thirty-six".