561074270456849 has 2 divisors, whose sum is σ = 561074270456850. Its totient is φ = 561074270456848.

The previous prime is 561074270456741. The next prime is 561074270456857. The reversal of 561074270456849 is 948654072470165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 457522175093824 + 103552095363025 = 21389768^2 + 10176055^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-561074270456849 is a prime.

It is not a weakly prime, because it can be changed into another prime (561074270456879) 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, 280537135228424 + 280537135228425.

It is an arithmetic number, because the mean of its divisors is an integer number (280537135228425).

Almost surely, 2^{561074270456849} is an apocalyptic number.

It is an amenable number.

561074270456849 is a deficient number, since it is larger than the sum of its proper divisors (1).

561074270456849 is an equidigital number, since it uses as much as digits as its factorization.

561074270456849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 406425600, while the sum is 68.

The spelling of 561074270456849 in words is "five hundred sixty-one trillion, seventy-four billion, two hundred seventy million, four hundred fifty-six thousand, eight hundred forty-nine".