12247275408 has 80 divisors (see below), whose sum is σ = 32214366720. Its totient is φ = 4008655872.

The previous prime is 12247275373. The next prime is 12247275419. The reversal of 12247275408 is 80457274221.

It is a self number, because there is not a number n which added to its sum of digits gives 12247275408.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 794785 + ... + 810047.

It is an arithmetic number, because the mean of its divisors is an integer number (402679584).

Almost surely, 2^12247275408 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 12247275408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16107183360).

12247275408 is an abundant number, since it is smaller than the sum of its proper divisors (19967091312).

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

12247275408 is a wasteful number, since it uses less digits than its factorization.

12247275408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15576 (or 15570 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 42.

The spelling of 12247275408 in words is "twelve billion, two hundred forty-seven million, two hundred seventy-five thousand, four hundred eight".