128173343883 has 16 divisors (see below), whose sum is σ = 184068603936. Its totient is φ = 78865263360.

The previous prime is 128173343849. The next prime is 128173343897. The reversal of 128173343883 is 388343371821.

It is not a de Polignac number, because 128173343883 - 2⁹ = 128173343371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128173343383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76191 + ... + 512007.

It is an arithmetic number, because the mean of its divisors is an integer number (11504287746).

Almost surely, 2^128173343883 is an apocalyptic number.

128173343883 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

128173343883 is a deficient number, since it is larger than the sum of its proper divisors (55895260053).

128173343883 is a wasteful number, since it uses less digits than its factorization.

128173343883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443374.

The product of its digits is 2322432, while the sum is 51.

The spelling of 128173343883 in words is "one hundred twenty-eight billion, one hundred seventy-three million, three hundred forty-three thousand, eight hundred eighty-three".