6856694966586 has 16 divisors (see below), whose sum is σ = 14084022093984. Its totient is φ = 2223792962064.

The previous prime is 6856694966503. The next prime is 6856694966609.

6856694966586 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 6856694966499 and 6856694966508.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15443006460 + ... + 15443006903.

It is an arithmetic number, because the mean of its divisors is an integer number (880251380874).

Almost surely, 2^{6856694966586} is an apocalyptic number.

6856694966586 is an abundant number, since it is smaller than the sum of its proper divisors (7227327127398).

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

6856694966586 is a wasteful number, since it uses less digits than its factorization.

6856694966586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30886013405.

The product of its digits is 24186470400, while the sum is 84.

The spelling of 6856694966586 in words is "six trillion, eight hundred fifty-six billion, six hundred ninety-four million, nine hundred sixty-six thousand, five hundred eighty-six".