13844644813 has 2 divisors, whose sum is σ = 13844644814. Its totient is φ = 13844644812.

The previous prime is 13844644811. The next prime is 13844644859. The reversal of 13844644813 is 31844644831.

13844644813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (13844644859) can be obtained adding 13844644813 to its sum of digits (46).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9112993444 + 4731651369 = 95462^2 + 68787^2 .

It is a cyclic number.

It is not a de Polignac number, because 13844644813 - 2¹ = 13844644811 is a prime.

Together with 13844644811, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13844644811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6922322406 + 6922322407.

It is an arithmetic number, because the mean of its divisors is an integer number (6922322407).

Almost surely, 2^13844644813 is an apocalyptic number.

It is an amenable number.

13844644813 is a deficient number, since it is larger than the sum of its proper divisors (1).

13844644813 is an equidigital number, since it uses as much as digits as its factorization.

13844644813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 884736, while the sum is 46.

The spelling of 13844644813 in words is "thirteen billion, eight hundred forty-four million, six hundred forty-four thousand, eight hundred thirteen".