128740793836105 has 32 divisors (see below), whose sum is σ = 168688170000000. Its totient is φ = 93543704217600.

The previous prime is 128740793836099. The next prime is 128740793836139. The reversal of 128740793836105 is 501638397047821.

It is not a de Polignac number, because 128740793836105 - 2¹¹ = 128740793834057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 608600646 + ... + 608812144.

It is an arithmetic number, because the mean of its divisors is an integer number (5271505312500).

It is a 1-persistent number, because it is pandigital, but 2⋅128740793836105 = 257481587672210 is not.

Almost surely, 2^{128740793836105} is an apocalyptic number.

It is an amenable number.

128740793836105 is a deficient number, since it is larger than the sum of its proper divisors (39947376163895).

128740793836105 is a wasteful number, since it uses less digits than its factorization.

128740793836105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221625.

The product of its (nonzero) digits is 60963840, while the sum is 64.

The spelling of 128740793836105 in words is "one hundred twenty-eight trillion, seven hundred forty billion, seven hundred ninety-three million, eight hundred thirty-six thousand, one hundred five".