12708584309 has 2 divisors, whose sum is σ = 12708584310. Its totient is φ = 12708584308.

The previous prime is 12708584299. The next prime is 12708584347. The reversal of 12708584309 is 90348580721.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11247663025 + 1460921284 = 106055^2 + 38222^2 .

It is a cyclic number.

It is not a de Polignac number, because 12708584309 - 2¹⁶ = 12708518773 is a prime.

It is a super-2 number, since 2×12708584309² (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 (12708584809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6354292154 + 6354292155.

It is an arithmetic number, because the mean of its divisors is an integer number (6354292155).

Almost surely, 2^12708584309 is an apocalyptic number.

It is an amenable number.

12708584309 is a deficient number, since it is larger than the sum of its proper divisors (1).

12708584309 is an equidigital number, since it uses as much as digits as its factorization.

12708584309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 12708584309 in words is "twelve billion, seven hundred eight million, five hundred eighty-four thousand, three hundred nine".