776313917779 has 2 divisors, whose sum is σ = 776313917780. Its totient is φ = 776313917778.

The previous prime is 776313917747. The next prime is 776313917801. The reversal of 776313917779 is 977719313677.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 776313917779 - 2⁵ = 776313917747 is a prime.

It is not a weakly prime, because it can be changed into another prime (776313917479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 388156958889 + 388156958890.

It is an arithmetic number, because the mean of its divisors is an integer number (388156958890).

Almost surely, 2^776313917779 is an apocalyptic number.

776313917779 is a deficient number, since it is larger than the sum of its proper divisors (1).

776313917779 is an equidigital number, since it uses as much as digits as its factorization.

776313917779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73513818, while the sum is 67.

The spelling of 776313917779 in words is "seven hundred seventy-six billion, three hundred thirteen million, nine hundred seventeen thousand, seven hundred seventy-nine".