6778757963 has 2 divisors, whose sum is σ = 6778757964. Its totient is φ = 6778757962.

The previous prime is 6778757899. The next prime is 6778758011. The reversal of 6778757963 is 3697578776.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6778757963 - 2⁶ = 6778757899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6778757963.

It is not a weakly prime, because it can be changed into another prime (6778757563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3389378981 + 3389378982.

It is an arithmetic number, because the mean of its divisors is an integer number (3389378982).

Almost surely, 2^6778757963 is an apocalyptic number.

6778757963 is a deficient number, since it is larger than the sum of its proper divisors (1).

6778757963 is an equidigital number, since it uses as much as digits as its factorization.

6778757963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93350880, while the sum is 65.

The square root of 6778757963 is about 82333.2130005868. The cubic root of 6778757963 is about 1892.5616806614.

The spelling of 6778757963 in words is "six billion, seven hundred seventy-eight million, seven hundred fifty-seven thousand, nine hundred sixty-three".