6686239017 has 16 divisors (see below), whose sum is σ = 8978641920. Its totient is φ = 4425753600.

The previous prime is 6686238967. The next prime is 6686239039. The reversal of 6686239017 is 7109326866.

It is not a de Polignac number, because 6686239017 - 2¹⁰ = 6686237993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6686239067) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 299209 + ... + 320777.

It is an arithmetic number, because the mean of its divisors is an integer number (561165120).

Almost surely, 2^6686239017 is an apocalyptic number.

It is an amenable number.

6686239017 is a deficient number, since it is larger than the sum of its proper divisors (2292402903).

6686239017 is a wasteful number, since it uses less digits than its factorization.

6686239017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22304.

The product of its (nonzero) digits is 653184, while the sum is 48.

The square root of 6686239017 is about 81769.4259304784. The cubic root of 6686239017 is about 1883.9120869337.

The spelling of 6686239017 in words is "six billion, six hundred eighty-six million, two hundred thirty-nine thousand, seventeen".