12445115712 has 112 divisors (see below), whose sum is σ = 34264104192. Its totient is φ = 3983349760.

The previous prime is 12445115707. The next prime is 12445115719. The reversal of 12445115712 is 21751154421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12445115719) 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, 465262 + ... + 491282.

Almost surely, 2^12445115712 is an apocalyptic number.

12445115712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12445115712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17132052096).

12445115712 is an abundant number, since it is smaller than the sum of its proper divisors (21818988480).

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

12445115712 is a wasteful number, since it uses less digits than its factorization.

12445115712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26136 (or 26126 counting only the distinct ones).

The product of its digits is 11200, while the sum is 33.

The spelling of 12445115712 in words is "twelve billion, four hundred forty-five million, one hundred fifteen thousand, seven hundred twelve".