82281165049 has 2 divisors, whose sum is σ = 82281165050. Its totient is φ = 82281165048.

The previous prime is 82281165019. The next prime is 82281165119. The reversal of 82281165049 is 94056118228.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78417921024 + 3863244025 = 280032^2 + 62155^2 .

It is a cyclic number.

It is not a de Polignac number, because 82281165049 - 2¹¹ = 82281163001 is a prime.

It is not a weakly prime, because it can be changed into another prime (82281165019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41140582524 + 41140582525.

It is an arithmetic number, because the mean of its divisors is an integer number (41140582525).

Almost surely, 2^82281165049 is an apocalyptic number.

It is an amenable number.

82281165049 is a deficient number, since it is larger than the sum of its proper divisors (1).

82281165049 is an equidigital number, since it uses as much as digits as its factorization.

82281165049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 276480, while the sum is 46.

The spelling of 82281165049 in words is "eighty-two billion, two hundred eighty-one million, one hundred sixty-five thousand, forty-nine".