6777965317 has 2 divisors, whose sum is σ = 6777965318. Its totient is φ = 6777965316.

The previous prime is 6777965309. The next prime is 6777965321. The reversal of 6777965317 is 7135697776.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5792884321 + 985080996 = 76111^2 + 31386^2 .

It is a cyclic number.

It is not a de Polignac number, because 6777965317 - 2³ = 6777965309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6777965357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3388982658 + 3388982659.

It is an arithmetic number, because the mean of its divisors is an integer number (3388982659).

Almost surely, 2^6777965317 is an apocalyptic number.

It is an amenable number.

6777965317 is a deficient number, since it is larger than the sum of its proper divisors (1).

6777965317 is an equidigital number, since it uses as much as digits as its factorization.

6777965317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11668860, while the sum is 58.

The square root of 6777965317 is about 82328.3992131512. The cubic root of 6777965317 is about 1892.4879114975.

The spelling of 6777965317 in words is "six billion, seven hundred seventy-seven million, nine hundred sixty-five thousand, three hundred seventeen".