12684416419 has 2 divisors, whose sum is σ = 12684416420. Its totient is φ = 12684416418.

The previous prime is 12684416411. The next prime is 12684416429. The reversal of 12684416419 is 91461448621.

12684416419 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12684416419 - 2³ = 12684416411 is a prime.

It is a super-2 number, since 2×12684416419² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12684416411) 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, 6342208209 + 6342208210.

It is an arithmetic number, because the mean of its divisors is an integer number (6342208210).

Almost surely, 2^12684416419 is an apocalyptic number.

12684416419 is a deficient number, since it is larger than the sum of its proper divisors (1).

12684416419 is an equidigital number, since it uses as much as digits as its factorization.

12684416419 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 spelling of 12684416419 in words is "twelve billion, six hundred eighty-four million, four hundred sixteen thousand, four hundred nineteen".