12381787459 has 2 divisors, whose sum is σ = 12381787460. Its totient is φ = 12381787458.

The previous prime is 12381787357. The next prime is 12381787499. The reversal of 12381787459 is 95478718321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12381787459 - 2¹⁹ = 12381263171 is a prime.

It is not a weakly prime, because it can be changed into another prime (12381787499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6190893729 + 6190893730.

It is an arithmetic number, because the mean of its divisors is an integer number (6190893730).

Almost surely, 2^12381787459 is an apocalyptic number.

12381787459 is a deficient number, since it is larger than the sum of its proper divisors (1).

12381787459 is an equidigital number, since it uses as much as digits as its factorization.

12381787459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3386880, while the sum is 55.

The spelling of 12381787459 in words is "twelve billion, three hundred eighty-one million, seven hundred eighty-seven thousand, four hundred fifty-nine".