128305001759 has 4 divisors (see below), whose sum is σ = 139969092840. Its totient is φ = 116640910680.

The previous prime is 128305001729. The next prime is 128305001779. The reversal of 128305001759 is 957100503821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 128305001759 - 2¹² = 128304997663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128305001729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5832045524 + ... + 5832045545.

It is an arithmetic number, because the mean of its divisors is an integer number (34992273210).

Almost surely, 2^128305001759 is an apocalyptic number.

128305001759 is a deficient number, since it is larger than the sum of its proper divisors (11664091081).

128305001759 is a wasteful number, since it uses less digits than its factorization.

128305001759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11664091080.

The product of its (nonzero) digits is 75600, while the sum is 41.

The spelling of 128305001759 in words is "one hundred twenty-eight billion, three hundred five million, one thousand, seven hundred fifty-nine".