841417129561 has 2 divisors, whose sum is σ = 841417129562. Its totient is φ = 841417129560.

The previous prime is 841417129549. The next prime is 841417129639. The reversal of 841417129561 is 165921714148.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 809073265225 + 32343864336 = 899485^2 + 179844^2 .

It is a cyclic number.

It is not a de Polignac number, because 841417129561 - 2⁷ = 841417129433 is a prime.

It is not a weakly prime, because it can be changed into another prime (841417129061) 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, 420708564780 + 420708564781.

It is an arithmetic number, because the mean of its divisors is an integer number (420708564781).

Almost surely, 2^841417129561 is an apocalyptic number.

It is an amenable number.

841417129561 is a deficient number, since it is larger than the sum of its proper divisors (1).

841417129561 is an equidigital number, since it uses as much as digits as its factorization.

841417129561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 49.

The spelling of 841417129561 in words is "eight hundred forty-one billion, four hundred seventeen million, one hundred twenty-nine thousand, five hundred sixty-one".