544424120209 has 2 divisors, whose sum is σ = 544424120210. Its totient is φ = 544424120208.

The previous prime is 544424120153. The next prime is 544424120221. The reversal of 544424120209 is 902021424445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 505845267984 + 38578852225 = 711228^2 + 196415^2 .

It is a cyclic number.

It is not a de Polignac number, because 544424120209 - 2⁹ = 544424119697 is a prime.

It is not a weakly prime, because it can be changed into another prime (544424120269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272212060104 + 272212060105.

It is an arithmetic number, because the mean of its divisors is an integer number (272212060105).

Almost surely, 2^544424120209 is an apocalyptic number.

It is an amenable number.

544424120209 is a deficient number, since it is larger than the sum of its proper divisors (1).

544424120209 is an equidigital number, since it uses as much as digits as its factorization.

544424120209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 37.

The spelling of 544424120209 in words is "five hundred forty-four billion, four hundred twenty-four million, one hundred twenty thousand, two hundred nine".