12676282921 has 3 divisors (see below), whose sum is σ = 12676395511. Its totient is φ = 12676170332.

The previous prime is 12676282919. The next prime is 12676282933. The reversal of 12676282921 is 12928267621.

The square root of 12676282921 is 112589.

It is a perfect power (a square), and thus also a powerful number.

12676282921 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, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 7812615321 + 4863667600 = 88389^2 + 69740^2 .

It is not a de Polignac number, because 12676282921 - 2¹ = 12676282919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12676282961) 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 2 ways as a sum of consecutive naturals, for example, 56295 + ... + 168883.

Almost surely, 2^12676282921 is an apocalyptic number.

12676282921 is the 112589-th square number.

12676282921 is the 56295-th centered octagonal number.

It is an amenable number.

12676282921 is a deficient number, since it is larger than the sum of its proper divisors (112590).

12676282921 is an frugal number, since it uses more digits than its factorization.

12676282921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225178 (or 112589 counting only the distinct ones).

The product of its digits is 290304, while the sum is 46.

The spelling of 12676282921 in words is "twelve billion, six hundred seventy-six million, two hundred eighty-two thousand, nine hundred twenty-one".