6844128911 has 2 divisors, whose sum is σ = 6844128912. Its totient is φ = 6844128910.

The previous prime is 6844128901. The next prime is 6844128913. The reversal of 6844128911 is 1198214486.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6844128911 - 2¹⁸ = 6843866767 is a prime.

Together with 6844128913, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6844128913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3422064455 + 3422064456.

It is an arithmetic number, because the mean of its divisors is an integer number (3422064456).

Almost surely, 2^6844128911 is an apocalyptic number.

6844128911 is a deficient number, since it is larger than the sum of its proper divisors (1).

6844128911 is an equidigital number, since it uses as much as digits as its factorization.

6844128911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 44.

The square root of 6844128911 is about 82729.2506372444. The cubic root of 6844128911 is about 1898.6258680179.

The spelling of 6844128911 in words is "six billion, eight hundred forty-four million, one hundred twenty-eight thousand, nine hundred eleven".