6500609687 has 12 divisors (see below), whose sum is σ = 7694938440. Its totient is φ = 5455055760.

The previous prime is 6500609663. The next prime is 6500609699. The reversal of 6500609687 is 7869060056.

It is not a de Polignac number, because 6500609687 - 2⁸ = 6500609431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6500609887) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2064737 + ... + 2067882.

It is an arithmetic number, because the mean of its divisors is an integer number (641244870).

Almost surely, 2^6500609687 is an apocalyptic number.

6500609687 is a deficient number, since it is larger than the sum of its proper divisors (1194328753).

6500609687 is a wasteful number, since it uses less digits than its factorization.

6500609687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4132654 (or 4132643 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 6500609687 is about 80626.3585125857. The cubic root of 6500609687 is about 1866.3139269313.

The spelling of 6500609687 in words is "six billion, five hundred million, six hundred nine thousand, six hundred eighty-seven".