12926782511 has 4 divisors (see below), whose sum is σ = 12927397992. Its totient is φ = 12926167032.

The previous prime is 12926782501. The next prime is 12926782513. The reversal of 12926782511 is 11528762921.

12926782511 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 is a cyclic number.

It is not a de Polignac number, because 12926782511 - 2⁶ = 12926782447 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 (12926782513) by changing a digit.

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, 275081 + ... + 318626.

It is an arithmetic number, because the mean of its divisors is an integer number (3231849498).

Almost surely, 2^12926782511 is an apocalyptic number.

12926782511 is a deficient number, since it is larger than the sum of its proper divisors (615481).

12926782511 is an equidigital number, since it uses as much as digits as its factorization.

12926782511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615480.

The product of its digits is 120960, while the sum is 44.

The spelling of 12926782511 in words is "twelve billion, nine hundred twenty-six million, seven hundred eighty-two thousand, five hundred eleven".