12281915069 has 2 divisors, whose sum is σ = 12281915070. Its totient is φ = 12281915068.

The previous prime is 12281915059. The next prime is 12281915083. The reversal of 12281915069 is 96051918221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10074136900 + 2207778169 = 100370^2 + 46987^2 .

It is a cyclic number.

It is not a de Polignac number, because 12281915069 - 2¹⁶ = 12281849533 is a prime.

It is a super-2 number, since 2×12281915069² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12281915029) 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, 6140957534 + 6140957535.

It is an arithmetic number, because the mean of its divisors is an integer number (6140957535).

Almost surely, 2^12281915069 is an apocalyptic number.

It is an amenable number.

12281915069 is a deficient number, since it is larger than the sum of its proper divisors (1).

12281915069 is an equidigital number, since it uses as much as digits as its factorization.

12281915069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 44.

The spelling of 12281915069 in words is "twelve billion, two hundred eighty-one million, nine hundred fifteen thousand, sixty-nine".