12519743791 has 2 divisors, whose sum is σ = 12519743792. Its totient is φ = 12519743790.

The previous prime is 12519743771. The next prime is 12519743813. The reversal of 12519743791 is 19734791521.

12519743791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12519743791 - 2¹¹ = 12519741743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12519743711) 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, 6259871895 + 6259871896.

It is an arithmetic number, because the mean of its divisors is an integer number (6259871896).

Almost surely, 2^12519743791 is an apocalyptic number.

12519743791 is a deficient number, since it is larger than the sum of its proper divisors (1).

12519743791 is an equidigital number, since it uses as much as digits as its factorization.

12519743791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 476280, while the sum is 49.

The spelling of 12519743791 in words is "twelve billion, five hundred nineteen million, seven hundred forty-three thousand, seven hundred ninety-one".