12449768532 has 24 divisors (see below), whose sum is σ = 30312480576. Its totient is φ = 3969491328.

The previous prime is 12449768521. The next prime is 12449768537. The reversal of 12449768532 is 23586794421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12449768537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22553653 + ... + 22554204.

It is an arithmetic number, because the mean of its divisors is an integer number (1263020024).

Almost surely, 2^12449768532 is an apocalyptic number.

12449768532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12449768532 is an abundant number, since it is smaller than the sum of its proper divisors (17862712044).

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

12449768532 is a wasteful number, since it uses less digits than its factorization.

12449768532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45107887 (or 45107885 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 51.

The spelling of 12449768532 in words is "twelve billion, four hundred forty-nine million, seven hundred sixty-eight thousand, five hundred thirty-two".