12394538526 has 48 divisors (see below), whose sum is σ = 25428744720. Its totient is φ = 4027524480.

The previous prime is 12394538521. The next prime is 12394538537. The reversal of 12394538526 is 62583549321.

12394538526 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12394538521) 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 23 ways as a sum of consecutive naturals, for example, 8974356 + ... + 8975736.

It is an arithmetic number, because the mean of its divisors is an integer number (529765515).

Almost surely, 2^12394538526 is an apocalyptic number.

12394538526 is an abundant number, since it is smaller than the sum of its proper divisors (13034206194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12394538526 is a wasteful number, since it uses less digits than its factorization.

12394538526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2281 (or 2238 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 48.

The spelling of 12394538526 in words is "twelve billion, three hundred ninety-four million, five hundred thirty-eight thousand, five hundred twenty-six".