128247881743 has 2 divisors, whose sum is σ = 128247881744. Its totient is φ = 128247881742.

The previous prime is 128247881719. The next prime is 128247881753. The reversal of 128247881743 is 347188742821.

It is a strong prime.

It is an emirp because it is prime and its reverse (347188742821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128247881743 - 2²¹ = 128245784591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128247881753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64123940871 + 64123940872.

It is an arithmetic number, because the mean of its divisors is an integer number (64123940872).

Almost surely, 2^128247881743 is an apocalyptic number.

128247881743 is a deficient number, since it is larger than the sum of its proper divisors (1).

128247881743 is an equidigital number, since it uses as much as digits as its factorization.

128247881743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4816896, while the sum is 55.

The spelling of 128247881743 in words is "one hundred twenty-eight billion, two hundred forty-seven million, eight hundred eighty-one thousand, seven hundred forty-three".