12788097689 has 2 divisors, whose sum is σ = 12788097690. Its totient is φ = 12788097688.

The previous prime is 12788097677. The next prime is 12788097787. The reversal of 12788097689 is 98679088721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12744603664 + 43494025 = 112892^2 + 6595^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12788097689 is a prime.

It is not a weakly prime, because it can be changed into another prime (12788097389) 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, 6394048844 + 6394048845.

It is an arithmetic number, because the mean of its divisors is an integer number (6394048845).

Almost surely, 2^12788097689 is an apocalyptic number.

It is an amenable number.

12788097689 is a deficient number, since it is larger than the sum of its proper divisors (1).

12788097689 is an equidigital number, since it uses as much as digits as its factorization.

12788097689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24385536, while the sum is 65.

The spelling of 12788097689 in words is "twelve billion, seven hundred eighty-eight million, ninety-seven thousand, six hundred eighty-nine".