12542412879 has 6 divisors (see below), whose sum is σ = 18116818616. Its totient is φ = 8361608580.

The previous prime is 12542412823. The next prime is 12542412889. The reversal of 12542412879 is 97821424521.

12542412879 is a `hidden beast` number, since 12 + 542 + 4 + 1 + 28 + 79 = 666.

12542412879 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 12542412879 - 2⁹ = 12542412367 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 (12542412889) 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 5 ways as a sum of consecutive naturals, for example, 696800707 + ... + 696800724.

Almost surely, 2^12542412879 is an apocalyptic number.

12542412879 is a deficient number, since it is larger than the sum of its proper divisors (5574405737).

12542412879 is a wasteful number, since it uses less digits than its factorization.

12542412879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393601437 (or 1393601434 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The spelling of 12542412879 in words is "twelve billion, five hundred forty-two million, four hundred twelve thousand, eight hundred seventy-nine".