12127747589 has 8 divisors (see below), whose sum is σ = 12842861760. Its totient is φ = 11412824256.

The previous prime is 12127747573. The next prime is 12127747591. The reversal of 12127747589 is 98574772121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12127747589 - 2⁴ = 12127747573 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12127747589.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12127047589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95432 + ... + 182654.

It is an arithmetic number, because the mean of its divisors is an integer number (1605357720).

Almost surely, 2^12127747589 is an apocalyptic number.

It is an amenable number.

12127747589 is a deficient number, since it is larger than the sum of its proper divisors (715114171).

12127747589 is an equidigital number, since it uses as much as digits as its factorization.

12127747589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95419.

The product of its digits is 1975680, while the sum is 53.

The spelling of 12127747589 in words is "twelve billion, one hundred twenty-seven million, seven hundred forty-seven thousand, five hundred eighty-nine".