775757808041 has 2 divisors, whose sum is σ = 775757808042. Its totient is φ = 775757808040.

The previous prime is 775757807987. The next prime is 775757808079. The reversal of 775757808041 is 140808757577.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 666474671641 + 109283136400 = 816379^2 + 330580^2 .

It is a cyclic number.

It is not a de Polignac number, because 775757808041 - 2¹⁴ = 775757791657 is a prime.

It is not a weakly prime, because it can be changed into another prime (775757838041) 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, 387878904020 + 387878904021.

It is an arithmetic number, because the mean of its divisors is an integer number (387878904021).

Almost surely, 2^775757808041 is an apocalyptic number.

It is an amenable number.

775757808041 is a deficient number, since it is larger than the sum of its proper divisors (1).

775757808041 is an equidigital number, since it uses as much as digits as its factorization.

775757808041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15366400, while the sum is 59.

The spelling of 775757808041 in words is "seven hundred seventy-five billion, seven hundred fifty-seven million, eight hundred eight thousand, forty-one".