6774776867 has 2 divisors, whose sum is σ = 6774776868. Its totient is φ = 6774776866.

The previous prime is 6774776863. The next prime is 6774776881. The reversal of 6774776867 is 7686774776.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6774776867 - 2² = 6774776863 is a prime.

It is not a weakly prime, because it can be changed into another prime (6774776861) by changing a digit.

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 as a sum of consecutive naturals, namely, 3387388433 + 3387388434.

It is an arithmetic number, because the mean of its divisors is an integer number (3387388434).

Almost surely, 2^6774776867 is an apocalyptic number.

6774776867 is a deficient number, since it is larger than the sum of its proper divisors (1).

6774776867 is an equidigital number, since it uses as much as digits as its factorization.

6774776867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116169984, while the sum is 65.

The square root of 6774776867 is about 82309.0327181653. The cubic root of 6774776867 is about 1892.1911139965.

The spelling of 6774776867 in words is "six billion, seven hundred seventy-four million, seven hundred seventy-six thousand, eight hundred sixty-seven".