6786899826871 has 2 divisors, whose sum is σ = 6786899826872. Its totient is φ = 6786899826870.

The previous prime is 6786899826869. The next prime is 6786899826937. The reversal of 6786899826871 is 1786289986876.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6786899826871 - 2¹ = 6786899826869 is a prime.

Together with 6786899826869, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6786899826271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3393449913435 + 3393449913436.

It is an arithmetic number, because the mean of its divisors is an integer number (3393449913436).

Almost surely, 2^{6786899826871} is an apocalyptic number.

6786899826871 is a deficient number, since it is larger than the sum of its proper divisors (1).

6786899826871 is an equidigital number, since it uses as much as digits as its factorization.

6786899826871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7023034368, while the sum is 85.

The spelling of 6786899826871 in words is "six trillion, seven hundred eighty-six billion, eight hundred ninety-nine million, eight hundred twenty-six thousand, eight hundred seventy-one".