12718544425 has 36 divisors (see below), whose sum is σ = 16846265520. Its totient is φ = 9522620640.

The previous prime is 12718544357. The next prime is 12718544431. The reversal of 12718544425 is 52444581721.

12718544425 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 12718544425 - 2¹¹ = 12718542377 is a prime.

It is a super-2 number, since 2×12718544425² (a number of 21 digits) contains 22 as substring.

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 35 ways as a sum of consecutive naturals, for example, 740586 + ... + 757564.

It is an arithmetic number, because the mean of its divisors is an integer number (467951820).

Almost surely, 2^12718544425 is an apocalyptic number.

It is an amenable number.

12718544425 is a deficient number, since it is larger than the sum of its proper divisors (4127721095).

12718544425 is a wasteful number, since it uses less digits than its factorization.

12718544425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17110 (or 17086 counting only the distinct ones).

The product of its digits is 358400, while the sum is 43.

The spelling of 12718544425 in words is "twelve billion, seven hundred eighteen million, five hundred forty-four thousand, four hundred twenty-five".