4431441361 has 2 divisors, whose sum is σ = 4431441362. Its totient is φ = 4431441360.

The previous prime is 4431441341. The next prime is 4431441397. The reversal of 4431441361 is 1631441344.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3146649025 + 1284792336 = 56095^2 + 35844^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4431441361 is a prime.

It is not a weakly prime, because it can be changed into another prime (4431441341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2215720680 + 2215720681.

It is an arithmetic number, because the mean of its divisors is an integer number (2215720681).

Almost surely, 2^4431441361 is an apocalyptic number.

It is an amenable number.

4431441361 is a deficient number, since it is larger than the sum of its proper divisors (1).

4431441361 is an equidigital number, since it uses as much as digits as its factorization.

4431441361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 31.

The square root of 4431441361 is about 66569.0721055957. The cubic root of 4431441361 is about 1642.5363985673.

The spelling of 4431441361 in words is "four billion, four hundred thirty-one million, four hundred forty-one thousand, three hundred sixty-one".