8281144369 has 2 divisors, whose sum is σ = 8281144370. Its totient is φ = 8281144368.

The previous prime is 8281144351. The next prime is 8281144493. The reversal of 8281144369 is 9634411828.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7159698225 + 1121446144 = 84615^2 + 33488^2 .

It is a cyclic number.

It is not a de Polignac number, because 8281144369 - 2⁷ = 8281144241 is a prime.

It is a super-2 number, since 2×8281144369² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8281144349) 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, 4140572184 + 4140572185.

It is an arithmetic number, because the mean of its divisors is an integer number (4140572185).

Almost surely, 2^8281144369 is an apocalyptic number.

It is an amenable number.

8281144369 is a deficient number, since it is larger than the sum of its proper divisors (1).

8281144369 is an equidigital number, since it uses as much as digits as its factorization.

8281144369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 46.

The square root of 8281144369 is about 91000.7932328065. The cubic root of 8281144369 is about 2023.1594814710.

The spelling of 8281144369 in words is "eight billion, two hundred eighty-one million, one hundred forty-four thousand, three hundred sixty-nine".