12378965344 has 96 divisors (see below), whose sum is σ = 26576424000. Its totient is φ = 5652725760.

The previous prime is 12378965323. The next prime is 12378965383. The reversal of 12378965344 is 44356987321.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12378965291 and 12378965300.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4437102 + ... + 4439890.

It is an arithmetic number, because the mean of its divisors is an integer number (276837750).

Almost surely, 2^12378965344 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 12378965344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13288212000).

12378965344 is an abundant number, since it is smaller than the sum of its proper divisors (14197458656).

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

12378965344 is a wasteful number, since it uses less digits than its factorization.

12378965344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3056 (or 3048 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 52.

The spelling of 12378965344 in words is "twelve billion, three hundred seventy-eight million, nine hundred sixty-five thousand, three hundred forty-four".