41444420422409 has 2 divisors, whose sum is σ = 41444420422410. Its totient is φ = 41444420422408.

The previous prime is 41444420422337. The next prime is 41444420422453. The reversal of 41444420422409 is 90422402444414.

It is an a-pointer prime, because the next prime (41444420422453) can be obtained adding 41444420422409 to its sum of digits (44).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40042571526400 + 1401848896009 = 6327920^2 + 1183997^2 .

It is a cyclic number.

It is not a de Polignac number, because 41444420422409 - 2²⁸ = 41444151986953 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 41444420422409.

It is not a weakly prime, because it can be changed into another prime (41444420422109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20722210211204 + 20722210211205.

It is an arithmetic number, because the mean of its divisors is an integer number (20722210211205).

Almost surely, 2^{41444420422409} is an apocalyptic number.

It is an amenable number.

41444420422409 is a deficient number, since it is larger than the sum of its proper divisors (1).

41444420422409 is an equidigital number, since it uses as much as digits as its factorization.

41444420422409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1179648, while the sum is 44.

The spelling of 41444420422409 in words is "forty-one trillion, four hundred forty-four billion, four hundred twenty million, four hundred twenty-two thousand, four hundred nine".