560843705921 has 2 divisors, whose sum is σ = 560843705922. Its totient is φ = 560843705920.

The previous prime is 560843705881. The next prime is 560843705957. The reversal of 560843705921 is 129507348065.

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., 557764010896 + 3079695025 = 746836^2 + 55495^2 .

It is a cyclic number.

It is not a de Polignac number, because 560843705921 - 2¹⁸ = 560843443777 is a prime.

It is a super-2 number, since 2×560843705921² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 560843705921.

It is not a weakly prime, because it can be changed into another prime (560843704921) 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, 280421852960 + 280421852961.

It is an arithmetic number, because the mean of its divisors is an integer number (280421852961).

It is a 1-persistent number, because it is pandigital, but 2⋅560843705921 = 1121687411842 is not.

Almost surely, 2^560843705921 is an apocalyptic number.

It is an amenable number.

560843705921 is a deficient number, since it is larger than the sum of its proper divisors (1).

560843705921 is an equidigital number, since it uses as much as digits as its factorization.

560843705921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 560843705921 in words is "five hundred sixty billion, eight hundred forty-three million, seven hundred five thousand, nine hundred twenty-one".