4442134023209 has 2 divisors, whose sum is σ = 4442134023210. Its totient is φ = 4442134023208.

The previous prime is 4442134023181. The next prime is 4442134023247. The reversal of 4442134023209 is 9023204312444.

It is a happy number.

It is an a-pointer prime, because the next prime (4442134023247) can be obtained adding 4442134023209 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2412420920809 + 2029713102400 = 1553197^2 + 1424680^2 .

It is a cyclic number.

It is not a de Polignac number, because 4442134023209 - 2²⁰ = 4442132974633 is a prime.

It is not a weakly prime, because it can be changed into another prime (4442134023109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2221067011604 + 2221067011605.

It is an arithmetic number, because the mean of its divisors is an integer number (2221067011605).

Almost surely, 2^{4442134023209} is an apocalyptic number.

It is an amenable number.

4442134023209 is a deficient number, since it is larger than the sum of its proper divisors (1).

4442134023209 is an equidigital number, since it uses as much as digits as its factorization.

4442134023209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 38.

The spelling of 4442134023209 in words is "four trillion, four hundred forty-two billion, one hundred thirty-four million, twenty-three thousand, two hundred nine".