12478278318 has 32 divisors (see below), whose sum is σ = 27311264640. Its totient is φ = 3769361760.

The previous prime is 12478278313. The next prime is 12478278331. The reversal of 12478278318 is 81387287421.

12478278318 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12478278313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 277288 + ... + 319131.

It is an arithmetic number, because the mean of its divisors is an integer number (853477020).

Almost surely, 2^12478278318 is an apocalyptic number.

12478278318 is an abundant number, since it is smaller than the sum of its proper divisors (14832986322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12478278318 is a wasteful number, since it uses less digits than its factorization.

12478278318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596752.

The product of its digits is 1204224, while the sum is 51.

The spelling of 12478278318 in words is "twelve billion, four hundred seventy-eight million, two hundred seventy-eight thousand, three hundred eighteen".