12788904265 has 4 divisors (see below), whose sum is σ = 15346685124. Its totient is φ = 10231123408.

The previous prime is 12788904259. The next prime is 12788904277. The reversal of 12788904265 is 56240988721.

12788904265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2108921929 + 10679982336 = 45923^2 + 103344^2 .

It is a cyclic number.

It is not a de Polignac number, because 12788904265 - 2¹³ = 12788896073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1278890422 + ... + 1278890431.

It is an arithmetic number, because the mean of its divisors is an integer number (3836671281).

Almost surely, 2^12788904265 is an apocalyptic number.

It is an amenable number.

12788904265 is a deficient number, since it is larger than the sum of its proper divisors (2557780859).

12788904265 is an equidigital number, since it uses as much as digits as its factorization.

12788904265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2557780858.

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 12788904265 in words is "twelve billion, seven hundred eighty-eight million, nine hundred four thousand, two hundred sixty-five".