12478219178 has 8 divisors (see below), whose sum is σ = 18720663780. Its totient is φ = 6237997920.

The previous prime is 12478219123. The next prime is 12478219199. The reversal of 12478219178 is 87191287421.

12478219178 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12471752329 + 6466849 = 111677^2 + 2543^2 .

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

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, 541733 + ... + 564296.

Almost surely, 2^12478219178 is an apocalyptic number.

12478219178 is a deficient number, since it is larger than the sum of its proper divisors (6242444602).

12478219178 is a wasteful number, since it uses less digits than its factorization.

12478219178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111672.

The product of its digits is 451584, while the sum is 50.

The spelling of 12478219178 in words is "twelve billion, four hundred seventy-eight million, two hundred nineteen thousand, one hundred seventy-eight".