12445144032 has 48 divisors (see below), whose sum is σ = 34590184272. Its totient is φ = 3904358400.

The previous prime is 12445144009. The next prime is 12445144043. The reversal of 12445144032 is 23044154421.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3811219 + ... + 3814482.

It is an arithmetic number, because the mean of its divisors is an integer number (720628839).

Almost surely, 2^12445144032 is an apocalyptic number.

12445144032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12445144032 is an abundant number, since it is smaller than the sum of its proper divisors (22145040240).

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

12445144032 is a wasteful number, since it uses less digits than its factorization.

12445144032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7625731 (or 7625723 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 12445144032 its reverse (23044154421), we get a palindrome (35489298453).

The spelling of 12445144032 in words is "twelve billion, four hundred forty-five million, one hundred forty-four thousand, thirty-two".