12678670211 has 2 divisors, whose sum is σ = 12678670212. Its totient is φ = 12678670210.

The previous prime is 12678670201. The next prime is 12678670243. The reversal of 12678670211 is 11207687621.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12678670211 is a prime.

It is not a weakly prime, because it can be changed into another prime (12678670201) 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, 6339335105 + 6339335106.

It is an arithmetic number, because the mean of its divisors is an integer number (6339335106).

Almost surely, 2^12678670211 is an apocalyptic number.

12678670211 is a deficient number, since it is larger than the sum of its proper divisors (1).

12678670211 is an equidigital number, since it uses as much as digits as its factorization.

12678670211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 41.

The spelling of 12678670211 in words is "twelve billion, six hundred seventy-eight million, six hundred seventy thousand, two hundred eleven".