12560538434 has 16 divisors (see below), whose sum is σ = 20071486368. Its totient is φ = 5874576192.

The previous prime is 12560538433. The next prime is 12560538443. The reversal of 12560538434 is 43483506521.

12560538434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12560538391 and 12560538400.

It is not an unprimeable number, because it can be changed into a prime (12560538433) 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 7 ways as a sum of consecutive naturals, for example, 1127672 + ... + 1138755.

It is an arithmetic number, because the mean of its divisors is an integer number (1254467898).

Almost surely, 2^12560538434 is an apocalyptic number.

12560538434 is a deficient number, since it is larger than the sum of its proper divisors (7510947934).

12560538434 is a wasteful number, since it uses less digits than its factorization.

12560538434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2266609.

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 12560538434 in words is "twelve billion, five hundred sixty million, five hundred thirty-eight thousand, four hundred thirty-four".