128060254587 has 4 divisors (see below), whose sum is σ = 170747006120. Its totient is φ = 85373503056.

The previous prime is 128060254583. The next prime is 128060254661. The reversal of 128060254587 is 785452060821.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 128060254587 - 2² = 128060254583 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128060254583) 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 3 ways as a sum of consecutive naturals, for example, 21343375762 + ... + 21343375767.

It is an arithmetic number, because the mean of its divisors is an integer number (42686751530).

Almost surely, 2^128060254587 is an apocalyptic number.

128060254587 is a deficient number, since it is larger than the sum of its proper divisors (42686751533).

128060254587 is an equidigital number, since it uses as much as digits as its factorization.

128060254587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42686751532.

The product of its (nonzero) digits is 1075200, while the sum is 48.

The spelling of 128060254587 in words is "one hundred twenty-eight billion, sixty million, two hundred fifty-four thousand, five hundred eighty-seven".