6879685665 has 8 divisors (see below), whose sum is σ = 11007497088. Its totient is φ = 3669165680.

The previous prime is 6879685649. The next prime is 6879685679. The reversal of 6879685665 is 5665869786.

6879685665 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6879685665 - 2⁴ = 6879685649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6879685596 and 6879685605.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229322841 + ... + 229322870.

It is an arithmetic number, because the mean of its divisors is an integer number (1375937136).

Almost surely, 2^6879685665 is an apocalyptic number.

It is an amenable number.

6879685665 is a deficient number, since it is larger than the sum of its proper divisors (4127811423).

6879685665 is a wasteful number, since it uses less digits than its factorization.

6879685665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458645719.

The product of its digits is 130636800, while the sum is 66.

The square root of 6879685665 is about 82943.8705691988. The cubic root of 6879685665 is about 1901.9081167929.

The spelling of 6879685665 in words is "six billion, eight hundred seventy-nine million, six hundred eighty-five thousand, six hundred sixty-five".