6867986897686 has 16 divisors (see below), whose sum is σ = 10306314132480. Its totient is φ = 3432549061480.

The previous prime is 6867986897669. The next prime is 6867986897689.

6867986897686 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 6867986897594 and 6867986897603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6867986897689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77995095 + ... + 78083101.

It is an arithmetic number, because the mean of its divisors is an integer number (644144633280).

Almost surely, 2^{6867986897686} is an apocalyptic number.

6867986897686 is a deficient number, since it is larger than the sum of its proper divisors (3438327234794).

6867986897686 is a wasteful number, since it uses less digits than its factorization.

6867986897686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103979.

The product of its digits is 126414618624, while the sum is 94.

The spelling of 6867986897686 in words is "six trillion, eight hundred sixty-seven billion, nine hundred eighty-six million, eight hundred ninety-seven thousand, six hundred eighty-six".