6444124459 has 2 divisors, whose sum is σ = 6444124460. Its totient is φ = 6444124458.

The previous prime is 6444124391. The next prime is 6444124579. The reversal of 6444124459 is 9544214446.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6444124459 - 2²¹ = 6442027307 is a prime.

It is not a weakly prime, because it can be changed into another prime (6444124259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3222062229 + 3222062230.

It is an arithmetic number, because the mean of its divisors is an integer number (3222062230).

Almost surely, 2^6444124459 is an apocalyptic number.

6444124459 is a deficient number, since it is larger than the sum of its proper divisors (1).

6444124459 is an equidigital number, since it uses as much as digits as its factorization.

6444124459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 552960, while the sum is 43.

The square root of 6444124459 is about 80275.3041663499. The cubic root of 6444124459 is about 1860.8925899535.

The spelling of 6444124459 in words is "six billion, four hundred forty-four million, one hundred twenty-four thousand, four hundred fifty-nine".