12798756829 has 4 divisors (see below), whose sum is σ = 12883516960. Its totient is φ = 12713996700.

The previous prime is 12798756811. The next prime is 12798756863. The reversal of 12798756829 is 92865789721.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12798756829 - 2⁵ = 12798756797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12798756869) 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, 42379839 + ... + 42380140.

It is an arithmetic number, because the mean of its divisors is an integer number (3220879240).

Almost surely, 2^12798756829 is an apocalyptic number.

It is an amenable number.

12798756829 is a deficient number, since it is larger than the sum of its proper divisors (84760131).

12798756829 is an equidigital number, since it uses as much as digits as its factorization.

12798756829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84760130.

The product of its digits is 30481920, while the sum is 64.

The spelling of 12798756829 in words is "twelve billion, seven hundred ninety-eight million, seven hundred fifty-six thousand, eight hundred twenty-nine".