4446489521 has 2 divisors, whose sum is σ = 4446489522. Its totient is φ = 4446489520.

The previous prime is 4446489449. The next prime is 4446489527. The reversal of 4446489521 is 1259846444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3765540496 + 680949025 = 61364^2 + 26095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4446489521 is a prime.

It is not a weakly prime, because it can be changed into another prime (4446489527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2223244760 + 2223244761.

It is an arithmetic number, because the mean of its divisors is an integer number (2223244761).

Almost surely, 2^4446489521 is an apocalyptic number.

It is an amenable number.

4446489521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4446489521 is an equidigital number, since it uses as much as digits as its factorization.

4446489521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1105920, while the sum is 47.

The square root of 4446489521 is about 66682.0029768153. The cubic root of 4446489521 is about 1644.3935238421.

The spelling of 4446489521 in words is "four billion, four hundred forty-six million, four hundred eighty-nine thousand, five hundred twenty-one".