12173609448 has 768 divisors, whose sum is σ = 47054131200. Its totient is φ = 2830464000.

The previous prime is 12173609443. The next prime is 12173609467. The reversal of 12173609448 is 84490637121.

12173609448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12173609443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 171459253 + ... + 171459323.

It is an arithmetic number, because the mean of its divisors is an integer number (61268400).

Almost surely, 2^12173609448 is an apocalyptic number.

12173609448 is a gapful number since it is divisible by the number (18) 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 12173609448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23527065600).

12173609448 is an abundant number, since it is smaller than the sum of its proper divisors (34880521752).

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

12173609448 is a wasteful number, since it uses less digits than its factorization.

12173609448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 12173609448 in words is "twelve billion, one hundred seventy-three million, six hundred nine thousand, four hundred forty-eight".