12684459607 has 2 divisors, whose sum is σ = 12684459608. Its totient is φ = 12684459606.

The previous prime is 12684459581. The next prime is 12684459703. The reversal of 12684459607 is 70695448621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12684459607 - 2¹¹ = 12684457559 is a prime.

It is a super-2 number, since 2×12684459607² (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 (12684459107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6342229803 + 6342229804.

It is an arithmetic number, because the mean of its divisors is an integer number (6342229804).

Almost surely, 2^12684459607 is an apocalyptic number.

12684459607 is a deficient number, since it is larger than the sum of its proper divisors (1).

12684459607 is an equidigital number, since it uses as much as digits as its factorization.

12684459607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 12684459607 in words is "twelve billion, six hundred eighty-four million, four hundred fifty-nine thousand, six hundred seven".