6844538354449 has 2 divisors, whose sum is σ = 6844538354450. Its totient is φ = 6844538354448.

The previous prime is 6844538354399. The next prime is 6844538354503. The reversal of 6844538354449 is 9444538354486.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3494880691600 + 3349657662849 = 1869460^2 + 1830207^2 .

It is a cyclic number.

It is not a de Polignac number, because 6844538354449 - 2¹⁷ = 6844538223377 is a prime.

It is not a weakly prime, because it can be changed into another prime (6844538351449) 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, 3422269177224 + 3422269177225.

It is an arithmetic number, because the mean of its divisors is an integer number (3422269177225).

Almost surely, 2^{6844538354449} is an apocalyptic number.

It is an amenable number.

6844538354449 is a deficient number, since it is larger than the sum of its proper divisors (1).

6844538354449 is an equidigital number, since it uses as much as digits as its factorization.

6844538354449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 796262400, while the sum is 67.

The spelling of 6844538354449 in words is "six trillion, eight hundred forty-four billion, five hundred thirty-eight million, three hundred fifty-four thousand, four hundred forty-nine".