6513608688 has 40 divisors (see below), whose sum is σ = 16859184336. Its totient is φ = 2167027200.

The previous prime is 6513608677. The next prime is 6513608707. The reversal of 6513608688 is 8868063156.

It is a self number, because there is not a number n which added to its sum of digits gives 6513608688.

It is a congruent number.

It is an unprimeable number.

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, 105223 + ... + 155238.

Almost surely, 2^6513608688 is an apocalyptic number.

It is an amenable number.

6513608688 is an abundant number, since it is smaller than the sum of its proper divisors (10345575648).

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

6513608688 is a wasteful number, since it uses less digits than its factorization.

6513608688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260993 (or 260987 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 51.

The square root of 6513608688 is about 80706.9308547909. The cubic root of 6513608688 is about 1867.5570956489.

The spelling of 6513608688 in words is "six billion, five hundred thirteen million, six hundred eight thousand, six hundred eighty-eight".