128753243327 has 4 divisors (see below), whose sum is σ = 130863952296. Its totient is φ = 126642534360.

The previous prime is 128753243309. The next prime is 128753243341. The reversal of 128753243327 is 723342357821.

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 128753243327 - 2²⁶ = 128686134463 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 (128753243527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1055354393 + ... + 1055354514.

It is an arithmetic number, because the mean of its divisors is an integer number (32715988074).

Almost surely, 2^128753243327 is an apocalyptic number.

128753243327 is a deficient number, since it is larger than the sum of its proper divisors (2110708969).

128753243327 is an equidigital number, since it uses as much as digits as its factorization.

128753243327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2110708968.

The product of its digits is 1693440, while the sum is 47.

The spelling of 128753243327 in words is "one hundred twenty-eight billion, seven hundred fifty-three million, two hundred forty-three thousand, three hundred twenty-seven".