12247017472 has 48 divisors (see below), whose sum is σ = 24549606900. Its totient is φ = 6108119040.

The previous prime is 12247017469. The next prime is 12247017479. The reversal of 12247017472 is 27471074221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11998135296 + 248882176 = 109536^2 + 15776^2 .

It is not an unprimeable number, because it can be changed into a prime (12247017479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 830322 + ... + 844942.

Almost surely, 2^12247017472 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 12247017472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12274803450).

12247017472 is an abundant number, since it is smaller than the sum of its proper divisors (12302589428).

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

12247017472 is an equidigital number, since it uses as much as digits as its factorization.

12247017472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15052 (or 15032 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 37.

The spelling of 12247017472 in words is "twelve billion, two hundred forty-seven million, seventeen thousand, four hundred seventy-two".