12878092789 has 2 divisors, whose sum is σ = 12878092790. Its totient is φ = 12878092788.

The previous prime is 12878092763. The next prime is 12878092811. The reversal of 12878092789 is 98729087821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11504278564 + 1373814225 = 107258^2 + 37065^2 .

It is a cyclic number.

It is not a de Polignac number, because 12878092789 - 2²⁹ = 12341221877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12878090789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6439046394 + 6439046395.

It is an arithmetic number, because the mean of its divisors is an integer number (6439046395).

Almost surely, 2^12878092789 is an apocalyptic number.

It is an amenable number.

12878092789 is a deficient number, since it is larger than the sum of its proper divisors (1).

12878092789 is an equidigital number, since it uses as much as digits as its factorization.

12878092789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8128512, while the sum is 61.

The spelling of 12878092789 in words is "twelve billion, eight hundred seventy-eight million, ninety-two thousand, seven hundred eighty-nine".