12587718026 has 16 divisors (see below), whose sum is σ = 20562481800. Its totient is φ = 5744437248.

The previous prime is 12587717993. The next prime is 12587718061. The reversal of 12587718026 is 62081778521.

12587718026 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 112195²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 2417197225 + 10170520801 = 49165^2 + 100849^2 .

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 7 ways as a sum of consecutive naturals, for example, 2717591 + ... + 2722218.

Almost surely, 2^12587718026 is an apocalyptic number.

12587718026 is a deficient number, since it is larger than the sum of its proper divisors (7974763774).

12587718026 is a wasteful number, since it uses less digits than its factorization.

12587718026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5439913.

The product of its (nonzero) digits is 376320, while the sum is 47.

The spelling of 12587718026 in words is "twelve billion, five hundred eighty-seven million, seven hundred eighteen thousand, twenty-six".