12543495179 has 4 divisors (see below), whose sum is σ = 12608487576. Its totient is φ = 12478502784.

The previous prime is 12543495149. The next prime is 12543495197. The reversal of 12543495179 is 97159434521.

12543495179 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97159434521 = 195493 ⋅496997.

It is a cyclic number.

It is not a de Polignac number, because 12543495179 - 2¹⁶ = 12543429643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12543495149) 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 3 ways as a sum of consecutive naturals, for example, 32495909 + ... + 32496294.

It is an arithmetic number, because the mean of its divisors is an integer number (3152121894).

Almost surely, 2^12543495179 is an apocalyptic number.

12543495179 is a deficient number, since it is larger than the sum of its proper divisors (64992397).

12543495179 is an equidigital number, since it uses as much as digits as its factorization.

12543495179 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64992396.

The product of its digits is 1360800, while the sum is 50.

The spelling of 12543495179 in words is "twelve billion, five hundred forty-three million, four hundred ninety-five thousand, one hundred seventy-nine".