6389686317 has 16 divisors (see below), whose sum is σ = 10309410432. Its totient is φ = 3436469760.

The previous prime is 6389686313. The next prime is 6389686333. The reversal of 6389686317 is 7136869836.

It is not a de Polignac number, because 6389686317 - 2² = 6389686313 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6389686313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8948784 + ... + 8949497.

It is an arithmetic number, because the mean of its divisors is an integer number (644338152).

Almost surely, 2^6389686317 is an apocalyptic number.

It is an amenable number.

6389686317 is a deficient number, since it is larger than the sum of its proper divisors (3919724115).

6389686317 is a wasteful number, since it uses less digits than its factorization.

6389686317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17898308.

The product of its digits is 7838208, while the sum is 57.

The square root of 6389686317 is about 79935.5134905631. The cubic root of 6389686317 is about 1855.6376664810.

The spelling of 6389686317 in words is "six billion, three hundred eighty-nine million, six hundred eighty-six thousand, three hundred seventeen".