782331568481 has 2 divisors, whose sum is σ = 782331568482. Its totient is φ = 782331568480.

The previous prime is 782331568453. The next prime is 782331568517. The reversal of 782331568481 is 184865133287.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 701505078481 + 80826490000 = 837559^2 + 284300^2 .

It is a cyclic number.

It is not a de Polignac number, because 782331568481 - 2³⁴ = 765151699297 is a prime.

It is a super-2 number, since 2×782331568481² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (782331168481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 391165784240 + 391165784241.

It is an arithmetic number, because the mean of its divisors is an integer number (391165784241).

Almost surely, 2^782331568481 is an apocalyptic number.

It is an amenable number.

782331568481 is a deficient number, since it is larger than the sum of its proper divisors (1).

782331568481 is an equidigital number, since it uses as much as digits as its factorization.

782331568481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7741440, while the sum is 56.

The spelling of 782331568481 in words is "seven hundred eighty-two billion, three hundred thirty-one million, five hundred sixty-eight thousand, four hundred eighty-one".