41844866813 has 2 divisors, whose sum is σ = 41844866814. Its totient is φ = 41844866812.

The previous prime is 41844866807. The next prime is 41844866837. The reversal of 41844866813 is 31866844814.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40942284964 + 902581849 = 202342^2 + 30043^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41844866813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41844866863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20922433406 + 20922433407.

It is an arithmetic number, because the mean of its divisors is an integer number (20922433407).

Almost surely, 2^41844866813 is an apocalyptic number.

It is an amenable number.

41844866813 is a deficient number, since it is larger than the sum of its proper divisors (1).

41844866813 is an equidigital number, since it uses as much as digits as its factorization.

41844866813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3538944, while the sum is 53.

The spelling of 41844866813 in words is "forty-one billion, eight hundred forty-four million, eight hundred sixty-six thousand, eight hundred thirteen".