6887667886 has 16 divisors (see below), whose sum is σ = 11380157568. Its totient is φ = 3100361400.

The previous prime is 6887667877. The next prime is 6887667931.

6887667886 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1517520 + ... + 1522051.

It is an arithmetic number, because the mean of its divisors is an integer number (711259848).

Almost surely, 2^6887667886 is an apocalyptic number.

6887667886 is a deficient number, since it is larger than the sum of its proper divisors (4492489682).

6887667886 is a wasteful number, since it uses less digits than its factorization.

6887667886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3039687.

The product of its digits is 260112384, while the sum is 70.

The square root of 6887667886 is about 82991.9748288954. The cubic root of 6887667886 is about 1902.6434015117.

The spelling of 6887667886 in words is "six billion, eight hundred eighty-seven million, six hundred sixty-seven thousand, eight hundred eighty-six".