4431221359 has 2 divisors, whose sum is σ = 4431221360. Its totient is φ = 4431221358.

The previous prime is 4431221321. The next prime is 4431221393. The reversal of 4431221359 is 9531221344.

It is an a-pointer prime, because the next prime (4431221393) can be obtained adding 4431221359 to its sum of digits (34).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4431221359 - 2¹⁹ = 4430697071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4431221159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2215610679 + 2215610680.

It is an arithmetic number, because the mean of its divisors is an integer number (2215610680).

Almost surely, 2^4431221359 is an apocalyptic number.

4431221359 is a deficient number, since it is larger than the sum of its proper divisors (1).

4431221359 is an equidigital number, since it uses as much as digits as its factorization.

4431221359 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 34.

The square root of 4431221359 is about 66567.4196510575. The cubic root of 4431221359 is about 1642.5092164954.

The spelling of 4431221359 in words is "four billion, four hundred thirty-one million, two hundred twenty-one thousand, three hundred fifty-nine".