12878328847 has 2 divisors, whose sum is σ = 12878328848. Its totient is φ = 12878328846.

The previous prime is 12878328803. The next prime is 12878328851. The reversal of 12878328847 is 74882387821.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12878328847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12878328791 and 12878328800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12878323847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6439164423 + 6439164424.

It is an arithmetic number, because the mean of its divisors is an integer number (6439164424).

Almost surely, 2^12878328847 is an apocalyptic number.

12878328847 is a deficient number, since it is larger than the sum of its proper divisors (1).

12878328847 is an equidigital number, since it uses as much as digits as its factorization.

12878328847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9633792, while the sum is 58.

The spelling of 12878328847 in words is "twelve billion, eight hundred seventy-eight million, three hundred twenty-eight thousand, eight hundred forty-seven".