12403567889 has 2 divisors, whose sum is σ = 12403567890. Its totient is φ = 12403567888.

The previous prime is 12403567879. The next prime is 12403567933. The reversal of 12403567889 is 98876530421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11248723600 + 1154844289 = 106060^2 + 33983^2 .

It is an emirp because it is prime and its reverse (98876530421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12403567889 - 2⁸ = 12403567633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12403567889.

It is not a weakly prime, because it can be changed into another prime (12403567879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6201783944 + 6201783945.

It is an arithmetic number, because the mean of its divisors is an integer number (6201783945).

It is a 1-persistent number, because it is pandigital, but 2⋅12403567889 = 24807135778 is not.

Almost surely, 2^12403567889 is an apocalyptic number.

It is an amenable number.

12403567889 is a deficient number, since it is larger than the sum of its proper divisors (1).

12403567889 is an equidigital number, since it uses as much as digits as its factorization.

12403567889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 12403567889 in words is "twelve billion, four hundred three million, five hundred sixty-seven thousand, eight hundred eighty-nine".