12178445472 has 96 divisors (see below), whose sum is σ = 35555083200. Its totient is φ = 4055526144.

The previous prime is 12178445437. The next prime is 12178445491. The reversal of 12178445472 is 27454487121.

12178445472 is a `hidden beast` number, since 1 + 2 + 178 + 4 + 4 + 5 + 472 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-3 number, since 3×12178445472³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 958779 + ... + 971397.

It is an arithmetic number, because the mean of its divisors is an integer number (370365450).

Almost surely, 2^12178445472 is an apocalyptic number.

12178445472 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 12178445472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17777541600).

12178445472 is an abundant number, since it is smaller than the sum of its proper divisors (23376637728).

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

12178445472 is a wasteful number, since it uses less digits than its factorization.

12178445472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13755 (or 13741 counting only the distinct ones).

The product of its digits is 501760, while the sum is 45.

The spelling of 12178445472 in words is "twelve billion, one hundred seventy-eight million, four hundred forty-five thousand, four hundred seventy-two".