12510947328 has 192 divisors, whose sum is σ = 38305612800. Its totient is φ = 3591290880.

The previous prime is 12510947321. The next prime is 12510947399. The reversal of 12510947328 is 82374901521.

It is a tau number, because it is divible by the number of its divisors (192).

It is a self number, because there is not a number n which added to its sum of digits gives 12510947328.

It is not an unprimeable number, because it can be changed into a prime (12510947321) 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, 1279225 + ... + 1288967.

It is an arithmetic number, because the mean of its divisors is an integer number (199508400).

Almost surely, 2^12510947328 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 12510947328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19152806400).

12510947328 is an abundant number, since it is smaller than the sum of its proper divisors (25794665472).

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

12510947328 is a wasteful number, since it uses less digits than its factorization.

12510947328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9798 (or 9778 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 12510947328 in words is "twelve billion, five hundred ten million, nine hundred forty-seven thousand, three hundred twenty-eight".