12438083541787 has 2 divisors, whose sum is σ = 12438083541788. Its totient is φ = 12438083541786.

The previous prime is 12438083541721. The next prime is 12438083541797. The reversal of 12438083541787 is 78714538083421.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12438083541787 is a prime.

It is not a weakly prime, because it can be changed into another prime (12438083541797) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6219041770893 + 6219041770894.

It is an arithmetic number, because the mean of its divisors is an integer number (6219041770894).

Almost surely, 2^{12438083541787} is an apocalyptic number.

12438083541787 is a deficient number, since it is larger than the sum of its proper divisors (1).

12438083541787 is an equidigital number, since it uses as much as digits as its factorization.

12438083541787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36126720, while the sum is 61.

The spelling of 12438083541787 in words is "twelve trillion, four hundred thirty-eight billion, eighty-three million, five hundred forty-one thousand, seven hundred eighty-seven".