6424440444269 has 2 divisors, whose sum is σ = 6424440444270. Its totient is φ = 6424440444268.

The previous prime is 6424440444239. The next prime is 6424440444311. The reversal of 6424440444269 is 9624440444246.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6138808986244 + 285631458025 = 2477662^2 + 534445^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6424440444269 is a prime.

It is a super-2 number, since 2×6424440444269² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6424440444269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6424440444239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3212220222134 + 3212220222135.

It is an arithmetic number, because the mean of its divisors is an integer number (3212220222135).

Almost surely, 2^{6424440444269} is an apocalyptic number.

It is an amenable number.

6424440444269 is a deficient number, since it is larger than the sum of its proper divisors (1).

6424440444269 is an equidigital number, since it uses as much as digits as its factorization.

6424440444269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21233664, while the sum is 53.

The spelling of 6424440444269 in words is "six trillion, four hundred twenty-four billion, four hundred forty million, four hundred forty-four thousand, two hundred sixty-nine".