6869171685911 has 2 divisors, whose sum is σ = 6869171685912. Its totient is φ = 6869171685910.

The previous prime is 6869171685899. The next prime is 6869171685923. The reversal of 6869171685911 is 1195861719686.

It is a balanced prime because it is at equal distance from previous prime (6869171685899) and next prime (6869171685923).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6869171685911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6869170685911) by changing a digit.

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 as a sum of consecutive naturals, namely, 3434585842955 + 3434585842956.

It is an arithmetic number, because the mean of its divisors is an integer number (3434585842956).

Almost surely, 2^{6869171685911} is an apocalyptic number.

6869171685911 is a deficient number, since it is larger than the sum of its proper divisors (1).

6869171685911 is an equidigital number, since it uses as much as digits as its factorization.

6869171685911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39191040, while the sum is 68.

The spelling of 6869171685911 in words is "six trillion, eight hundred sixty-nine billion, one hundred seventy-one million, six hundred eighty-five thousand, nine hundred eleven".