6441120709 has 2 divisors, whose sum is σ = 6441120710. Its totient is φ = 6441120708.

The previous prime is 6441120641. The next prime is 6441120713. The reversal of 6441120709 is 9070211446.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6224736609 + 216384100 = 78897^2 + 14710^2 .

It is a cyclic number.

It is not a de Polignac number, because 6441120709 - 2²¹ = 6439023557 is a prime.

It is a super-3 number, since 3×6441120709³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6441120209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3220560354 + 3220560355.

It is an arithmetic number, because the mean of its divisors is an integer number (3220560355).

Almost surely, 2^6441120709 is an apocalyptic number.

It is an amenable number.

6441120709 is a deficient number, since it is larger than the sum of its proper divisors (1).

6441120709 is an equidigital number, since it uses as much as digits as its factorization.

6441120709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 6441120709 is about 80256.5929316714. The cubic root of 6441120709 is about 1860.6034105175.

The spelling of 6441120709 in words is "six billion, four hundred forty-one million, one hundred twenty thousand, seven hundred nine".