12389581739 has 2 divisors, whose sum is σ = 12389581740. Its totient is φ = 12389581738.

The previous prime is 12389581723. The next prime is 12389581751. The reversal of 12389581739 is 93718598321.

12389581739 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12389581739 - 2⁴ = 12389581723 is a prime.

It is not a weakly prime, because it can be changed into another prime (12389581339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6194790869 + 6194790870.

It is an arithmetic number, because the mean of its divisors is an integer number (6194790870).

Almost surely, 2^12389581739 is an apocalyptic number.

12389581739 is a deficient number, since it is larger than the sum of its proper divisors (1).

12389581739 is an equidigital number, since it uses as much as digits as its factorization.

12389581739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 56.

The spelling of 12389581739 in words is "twelve billion, three hundred eighty-nine million, five hundred eighty-one thousand, seven hundred thirty-nine".