12444477078 has 24 divisors (see below), whose sum is σ = 27357281784. Its totient is φ = 3771053440.

The previous prime is 12444477053. The next prime is 12444477079. The reversal of 12444477078 is 87077444421.

It is a happy number.

12444477078 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 (12444477079) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8569851 + ... + 8571302.

It is an arithmetic number, because the mean of its divisors is an integer number (1139886741).

Almost surely, 2^12444477078 is an apocalyptic number.

12444477078 is an abundant number, since it is smaller than the sum of its proper divisors (14912804706).

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

12444477078 is a wasteful number, since it uses less digits than its factorization.

12444477078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17141180 (or 17141169 counting only the distinct ones).

The product of its (nonzero) digits is 1404928, while the sum is 48.

The spelling of 12444477078 in words is "twelve billion, four hundred forty-four million, four hundred seventy-seven thousand, seventy-eight".