128450544343 has 8 divisors (see below), whose sum is σ = 141231237120. Its totient is φ = 115853746680.

The previous prime is 128450544331. The next prime is 128450544359. The reversal of 128450544343 is 343445054821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128450544343 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 128450544343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128450545343) 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 7 ways as a sum of consecutive naturals, for example, 45972313 + ... + 45975106.

It is an arithmetic number, because the mean of its divisors is an integer number (17653904640).

Almost surely, 2^128450544343 is an apocalyptic number.

128450544343 is a deficient number, since it is larger than the sum of its proper divisors (12780692777).

128450544343 is a wasteful number, since it uses less digits than its factorization.

128450544343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91947557.

The product of its (nonzero) digits is 921600, while the sum is 43.

The spelling of 128450544343 in words is "one hundred twenty-eight billion, four hundred fifty million, five hundred forty-four thousand, three hundred forty-three".