12427982244 has 72 divisors (see below), whose sum is σ = 32287415160. Its totient is φ = 4027802112.

The previous prime is 12427982221. The next prime is 12427982257. The reversal of 12427982244 is 44228972421.

It can be written as a sum of positive squares in 4 ways, for example, as 270273600 + 12157708644 = 16440^2 + 110262^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12427982244.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2625672 + ... + 2630400.

Almost surely, 2^12427982244 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 12427982244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16143707580).

12427982244 is an abundant number, since it is smaller than the sum of its proper divisors (19859432916).

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

12427982244 is a wasteful number, since it uses less digits than its factorization.

12427982244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6749 (or 6744 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The spelling of 12427982244 in words is "twelve billion, four hundred twenty-seven million, nine hundred eighty-two thousand, two hundred forty-four".