775757838013 has 2 divisors, whose sum is σ = 775757838014. Its totient is φ = 775757838012.

The previous prime is 775757837989. The next prime is 775757838041. The reversal of 775757838013 is 310838757577.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 565807848804 + 209949989209 = 752202^2 + 458203^2 .

It is an emirp because it is prime and its reverse (310838757577) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-775757838013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (775757838083) 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, 387878919006 + 387878919007.

It is an arithmetic number, because the mean of its divisors is an integer number (387878919007).

Almost surely, 2^775757838013 is an apocalyptic number.

It is an amenable number.

775757838013 is a deficient number, since it is larger than the sum of its proper divisors (1).

775757838013 is an equidigital number, since it uses as much as digits as its factorization.

775757838013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34574400, while the sum is 61.

The spelling of 775757838013 in words is "seven hundred seventy-five billion, seven hundred fifty-seven million, eight hundred thirty-eight thousand, thirteen".