12678829811 has 4 divisors (see below), whose sum is σ = 12771376152. Its totient is φ = 12586283472.

The previous prime is 12678829781. The next prime is 12678829829. The reversal of 12678829811 is 11892887621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11892887621 = 12953 ⋅918157.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12678829811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12678829411) 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 in 3 ways as a sum of consecutive naturals, for example, 46272965 + ... + 46273238.

It is an arithmetic number, because the mean of its divisors is an integer number (3192844038).

Almost surely, 2^12678829811 is an apocalyptic number.

12678829811 is a deficient number, since it is larger than the sum of its proper divisors (92546341).

12678829811 is an equidigital number, since it uses as much as digits as its factorization.

12678829811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92546340.

The product of its digits is 774144, while the sum is 53.

The spelling of 12678829811 in words is "twelve billion, six hundred seventy-eight million, eight hundred twenty-nine thousand, eight hundred eleven".