12819550829 has 2 divisors, whose sum is σ = 12819550830. Its totient is φ = 12819550828.

The previous prime is 12819550823. The next prime is 12819550841. The reversal of 12819550829 is 92805591821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11946052804 + 873498025 = 109298^2 + 29555^2 .

It is a cyclic number.

It is not a de Polignac number, because 12819550829 - 2⁸ = 12819550573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12819550823) 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, 6409775414 + 6409775415.

It is an arithmetic number, because the mean of its divisors is an integer number (6409775415).

Almost surely, 2^12819550829 is an apocalyptic number.

It is an amenable number.

12819550829 is a deficient number, since it is larger than the sum of its proper divisors (1).

12819550829 is an equidigital number, since it uses as much as digits as its factorization.

12819550829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 50.

The spelling of 12819550829 in words is "twelve billion, eight hundred nineteen million, five hundred fifty thousand, eight hundred twenty-nine".