12542521412 has 24 divisors (see below), whose sum is σ = 22065989400. Its totient is φ = 6238008576.

The previous prime is 12542521399. The next prime is 12542521427. The reversal of 12542521412 is 21412524521.

12542521412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11062276 + 12531459136 = 3326^2 + 111944^2 .

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, 990014 + ... + 1002602.

It is an arithmetic number, because the mean of its divisors is an integer number (919416225).

Almost surely, 2^12542521412 is an apocalyptic number.

It is an amenable number.

12542521412 is a deficient number, since it is larger than the sum of its proper divisors (9523467988).

12542521412 is a wasteful number, since it uses less digits than its factorization.

12542521412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13895 (or 13893 counting only the distinct ones).

The product of its digits is 6400, while the sum is 29.

The spelling of 12542521412 in words is "twelve billion, five hundred forty-two million, five hundred twenty-one thousand, four hundred twelve".