41256743425217 has 2 divisors, whose sum is σ = 41256743425218. Its totient is φ = 41256743425216.

The previous prime is 41256743425207. The next prime is 41256743425259. The reversal of 41256743425217 is 71252434765214.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39497403812416 + 1759339612801 = 6284696^2 + 1326401^2 .

It is a cyclic number.

It is not a de Polignac number, because 41256743425217 - 2²² = 41256739230913 is a prime.

It is not a weakly prime, because it can be changed into another prime (41256743425207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20628371712608 + 20628371712609.

It is an arithmetic number, because the mean of its divisors is an integer number (20628371712609).

Almost surely, 2^{41256743425217} is an apocalyptic number.

It is an amenable number.

41256743425217 is a deficient number, since it is larger than the sum of its proper divisors (1).

41256743425217 is an equidigital number, since it uses as much as digits as its factorization.

41256743425217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11289600, while the sum is 53.

The spelling of 41256743425217 in words is "forty-one trillion, two hundred fifty-six billion, seven hundred forty-three million, four hundred twenty-five thousand, two hundred seventeen".