12605243542 has 8 divisors (see below), whose sum is σ = 18929281176. Its totient is φ = 6295483152.

The previous prime is 12605243531. The next prime is 12605243569. The reversal of 12605243542 is 24534250621.

12605243542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12605243498 and 12605243507.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 3567103 + ... + 3570634.

It is an arithmetic number, because the mean of its divisors is an integer number (2366160147).

Almost surely, 2^12605243542 is an apocalyptic number.

12605243542 is a deficient number, since it is larger than the sum of its proper divisors (6324037634).

12605243542 is an equidigital number, since it uses as much as digits as its factorization.

12605243542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7138622.

The product of its (nonzero) digits is 57600, while the sum is 34.

The spelling of 12605243542 in words is "twelve billion, six hundred five million, two hundred forty-three thousand, five hundred forty-two".