12389774144 has 84 divisors (see below), whose sum is σ = 28307556288. Its totient is φ = 5335200000.

The previous prime is 12389774141. The next prime is 12389774167. The reversal of 12389774144 is 44147798321.

12389774144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 12389774092 and 12389774101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12389774141) 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 11 ways as a sum of consecutive naturals, for example, 229769 + ... + 278519.

Almost surely, 2^12389774144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12389774144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14153778144).

12389774144 is an abundant number, since it is smaller than the sum of its proper divisors (15917782144).

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

12389774144 is a wasteful number, since it uses less digits than its factorization.

12389774144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48812 (or 48783 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 50.

The spelling of 12389774144 in words is "twelve billion, three hundred eighty-nine million, seven hundred seventy-four thousand, one hundred forty-four".