12526978827 has 32 divisors (see below), whose sum is σ = 18680048640. Its totient is φ = 7401532320.

The previous prime is 12526978757. The next prime is 12526978859. The reversal of 12526978827 is 72887962521.

12526978827 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12526978827 - 2⁷ = 12526978699 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12526978897) 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 31 ways as a sum of consecutive naturals, for example, 768124 + ... + 784262.

It is an arithmetic number, because the mean of its divisors is an integer number (583751520).

Almost surely, 2^12526978827 is an apocalyptic number.

12526978827 is a deficient number, since it is larger than the sum of its proper divisors (6153069813).

12526978827 is a wasteful number, since it uses less digits than its factorization.

12526978827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16743.

The product of its digits is 6773760, while the sum is 57.

The spelling of 12526978827 in words is "twelve billion, five hundred twenty-six million, nine hundred seventy-eight thousand, eight hundred twenty-seven".