4442521305449 has 2 divisors, whose sum is σ = 4442521305450. Its totient is φ = 4442521305448.

The previous prime is 4442521305437. The next prime is 4442521305517. The reversal of 4442521305449 is 9445031252444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3494536719424 + 947984586025 = 1869368^2 + 973645^2 .

It is a cyclic number.

It is not a de Polignac number, because 4442521305449 - 2⁴ = 4442521305433 is a prime.

It is not a weakly prime, because it can be changed into another prime (4442521305149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2221260652724 + 2221260652725.

It is an arithmetic number, because the mean of its divisors is an integer number (2221260652725).

Almost surely, 2^{4442521305449} is an apocalyptic number.

It is an amenable number.

4442521305449 is a deficient number, since it is larger than the sum of its proper divisors (1).

4442521305449 is an equidigital number, since it uses as much as digits as its factorization.

4442521305449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2764800, while the sum is 47.

The spelling of 4442521305449 in words is "four trillion, four hundred forty-two billion, five hundred twenty-one million, three hundred five thousand, four hundred forty-nine".