12250780189 has 2 divisors, whose sum is σ = 12250780190. Its totient is φ = 12250780188.

The previous prime is 12250780187. The next prime is 12250780231. The reversal of 12250780189 is 98108705221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12194784900 + 55995289 = 110430^2 + 7483^2 .

It is an emirp because it is prime and its reverse (98108705221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12250780189 - 2¹ = 12250780187 is a prime.

Together with 12250780187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12250780181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6125390094 + 6125390095.

It is an arithmetic number, because the mean of its divisors is an integer number (6125390095).

Almost surely, 2^12250780189 is an apocalyptic number.

It is an amenable number.

12250780189 is a deficient number, since it is larger than the sum of its proper divisors (1).

12250780189 is an equidigital number, since it uses as much as digits as its factorization.

12250780189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 43.

The spelling of 12250780189 in words is "twelve billion, two hundred fifty million, seven hundred eighty thousand, one hundred eighty-nine".