6886666886 has 16 divisors (see below), whose sum is σ = 11273333760. Its totient is φ = 3129124680.

The previous prime is 6886666861. The next prime is 6886666931.

6886666886 is nontrivially palindromic in base 10.

It is a Curzon number.

It is a congruent number.

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, 2255 + ... + 117381.

It is an arithmetic number, because the mean of its divisors is an integer number (704583360).

Almost surely, 2^6886666886 is an apocalyptic number.

6886666886 is a deficient number, since it is larger than the sum of its proper divisors (4386666874).

6886666886 is a wasteful number, since it uses less digits than its factorization.

6886666886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117859.

The product of its digits is 191102976, while the sum is 68.

The square root of 6886666886 is about 82985.9439061821. The cubic root of 6886666886 is about 1902.5512252556.

The spelling of 6886666886 in words is "six billion, eight hundred eighty-six million, six hundred sixty-six thousand, eight hundred eighty-six".