778116683 has 2 divisors, whose sum is σ = 778116684. Its totient is φ = 778116682.

The previous prime is 778116667. The next prime is 778116701. The reversal of 778116683 is 386611877.

778116683 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 778116683 - 2⁴ = 778116667 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (778116613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 389058341 + 389058342.

It is an arithmetic number, because the mean of its divisors is an integer number (389058342).

Almost surely, 2^778116683 is an apocalyptic number.

778116683 is a deficient number, since it is larger than the sum of its proper divisors (1).

778116683 is an equidigital number, since it uses as much as digits as its factorization.

778116683 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 47.

The square root of 778116683 is about 27894.7429276557. The cubic root of 778116683 is about 919.7749461324.

The spelling of 778116683 in words is "seven hundred seventy-eight million, one hundred sixteen thousand, six hundred eighty-three".