6779339771 has 2 divisors, whose sum is σ = 6779339772. Its totient is φ = 6779339770.

The previous prime is 6779339767. The next prime is 6779339839. The reversal of 6779339771 is 1779339776.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6779339771 - 2² = 6779339767 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6779339771.

It is not a weakly prime, because it can be changed into another prime (6779339701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3389669885 + 3389669886.

It is an arithmetic number, because the mean of its divisors is an integer number (3389669886).

Almost surely, 2^6779339771 is an apocalyptic number.

6779339771 is a deficient number, since it is larger than the sum of its proper divisors (1).

6779339771 is an equidigital number, since it uses as much as digits as its factorization.

6779339771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10501974, while the sum is 59.

The square root of 6779339771 is about 82336.7461769045. The cubic root of 6779339771 is about 1892.6158241112.

The spelling of 6779339771 in words is "six billion, seven hundred seventy-nine million, three hundred thirty-nine thousand, seven hundred seventy-one".