41581255218413 has 2 divisors, whose sum is σ = 41581255218414. Its totient is φ = 41581255218412.

The previous prime is 41581255218359. The next prime is 41581255218541. The reversal of 41581255218413 is 31481255218514.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41550748404169 + 30506814244 = 6445987^2 + 174662^2 .

It is a cyclic number.

It is not a de Polignac number, because 41581255218413 - 2¹⁴ = 41581255202029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41581255248413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20790627609206 + 20790627609207.

It is an arithmetic number, because the mean of its divisors is an integer number (20790627609207).

Almost surely, 2^{41581255218413} is an apocalyptic number.

It is an amenable number.

41581255218413 is a deficient number, since it is larger than the sum of its proper divisors (1).

41581255218413 is an equidigital number, since it uses as much as digits as its factorization.

41581255218413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536000, while the sum is 50.

The spelling of 41581255218413 in words is "forty-one trillion, five hundred eighty-one billion, two hundred fifty-five million, two hundred eighteen thousand, four hundred thirteen".