12189350448 has 240 divisors, whose sum is σ = 39640962816. Its totient is φ = 3593445120.

The previous prime is 12189350359. The next prime is 12189350449. The reversal of 12189350448 is 84405398121.

12189350448 is a `hidden beast` number, since 1 + 2 + 18 + 93 + 504 + 48 = 666.

It is not an unprimeable number, because it can be changed into a prime (12189350449) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1578565 + ... + 1586267.

Almost surely, 2^12189350448 is an apocalyptic number.

12189350448 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 12189350448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19820481408).

12189350448 is an abundant number, since it is smaller than the sum of its proper divisors (27451612368).

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

12189350448 is a wasteful number, since it uses less digits than its factorization.

12189350448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7774 (or 7756 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 12189350448 in words is "twelve billion, one hundred eighty-nine million, three hundred fifty thousand, four hundred forty-eight".