12285281250 has 378 divisors, whose sum is σ = 38598080157. Its totient is φ = 2821500000.

The previous prime is 12285281237. The next prime is 12285281279. The reversal of 12285281250 is 5218258221.

12285281250 is a `hidden beast` number, since 1 + 2 + 2 + 8 + 528 + 125 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2094984441 + 10190296809 = 45771^2 + 100947^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=78375.

It is an unprimeable number.

It is a polite number, since it can be written in 188 ways as a sum of consecutive naturals, for example, 646593741 + ... + 646593759.

Almost surely, 2^12285281250 is an apocalyptic number.

12285281250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12285281250

12285281250 is an abundant number, since it is smaller than the sum of its proper divisors (26312798907).

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

12285281250 is an equidigital number, since it uses as much as digits as its factorization.

12285281250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 36.

The spelling of 12285281250 in words is "twelve billion, two hundred eighty-five million, two hundred eighty-one thousand, two hundred fifty".