6441219439 has 2 divisors, whose sum is σ = 6441219440. Its totient is φ = 6441219438.

The previous prime is 6441219419. The next prime is 6441219467. The reversal of 6441219439 is 9349121446.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6441219439 - 2¹⁵ = 6441186671 is a prime.

It is a super-2 number, since 2×6441219439² = 82978615722702949442, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6441219395 and 6441219404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6441219419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3220609719 + 3220609720.

It is an arithmetic number, because the mean of its divisors is an integer number (3220609720).

Almost surely, 2^6441219439 is an apocalyptic number.

6441219439 is a deficient number, since it is larger than the sum of its proper divisors (1).

6441219439 is an equidigital number, since it uses as much as digits as its factorization.

6441219439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 43.

The square root of 6441219439 is about 80257.2080189686. The cubic root of 6441219439 is about 1860.6129169602.

The spelling of 6441219439 in words is "six billion, four hundred forty-one million, two hundred nineteen thousand, four hundred thirty-nine".