128711505182 has 16 divisors (see below), whose sum is σ = 208369621152. Its totient is φ = 59276442720.

The previous prime is 128711505179. The next prime is 128711505199. The reversal of 128711505182 is 281505117821.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5357258 + ... + 5381229.

It is an arithmetic number, because the mean of its divisors is an integer number (13023101322).

Almost surely, 2^128711505182 is an apocalyptic number.

128711505182 is a deficient number, since it is larger than the sum of its proper divisors (79658115970).

128711505182 is a wasteful number, since it uses less digits than its factorization.

128711505182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10738963.

The product of its (nonzero) digits is 44800, while the sum is 41.

The spelling of 128711505182 in words is "one hundred twenty-eight billion, seven hundred eleven million, five hundred five thousand, one hundred eighty-two".