128928527385 has 32 divisors (see below), whose sum is σ = 237611384832. Its totient is φ = 58474664640.

The previous prime is 128928527383. The next prime is 128928527417. The reversal of 128928527385 is 583725829821.

It is not a de Polignac number, because 128928527385 - 2¹ = 128928527383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128928527383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4820881 + ... + 4847550.

It is an arithmetic number, because the mean of its divisors is an integer number (7425355776).

Almost surely, 2^128928527385 is an apocalyptic number.

128928527385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

128928527385 is a deficient number, since it is larger than the sum of its proper divisors (108682857447).

128928527385 is a wasteful number, since it uses less digits than its factorization.

128928527385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9668573.

The product of its digits is 19353600, while the sum is 60.

The spelling of 128928527385 in words is "one hundred twenty-eight billion, nine hundred twenty-eight million, five hundred twenty-seven thousand, three hundred eighty-five".