2044681398269 has 2 divisors, whose sum is σ = 2044681398270. Its totient is φ = 2044681398268.

The previous prime is 2044681398259. The next prime is 2044681398293. The reversal of 2044681398269 is 9628931864402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1974480246244 + 70201152025 = 1405162^2 + 264955^2 .

It is a cyclic number.

It is not a de Polignac number, because 2044681398269 - 2³⁶ = 1975961921533 is a prime.

It is a super-2 number, since 2×2044681398269² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2044681398259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022340699134 + 1022340699135.

It is an arithmetic number, because the mean of its divisors is an integer number (1022340699135).

Almost surely, 2^{2044681398269} is an apocalyptic number.

It is an amenable number.

2044681398269 is a deficient number, since it is larger than the sum of its proper divisors (1).

2044681398269 is an equidigital number, since it uses as much as digits as its factorization.

2044681398269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35831808, while the sum is 62.

The spelling of 2044681398269 in words is "two trillion, forty-four billion, six hundred eighty-one million, three hundred ninety-eight thousand, two hundred sixty-nine".