128589052860 has 216 divisors, whose sum is σ = 400297388400. Its totient is φ = 33410119680.

The previous prime is 128589052831. The next prime is 128589052871. The reversal of 128589052860 is 68250985821.

It is a happy number.

128589052860 is a `hidden beast` number, since 1 + 2 + 8 + 58 + 9 + 0 + 528 + 60 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 128589052797 and 128589052806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 75684291 + ... + 75685989.

It is an arithmetic number, because the mean of its divisors is an integer number (1853228650).

Almost surely, 2^128589052860 is an apocalyptic number.

128589052860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128589052860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200148694200).

128589052860 is an abundant number, since it is smaller than the sum of its proper divisors (271708335540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128589052860 is a wasteful number, since it uses less digits than its factorization.

128589052860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949 (or 1883 counting only the distinct ones).

The product of its (nonzero) digits is 2764800, while the sum is 54.

The spelling of 128589052860 in words is "one hundred twenty-eight billion, five hundred eighty-nine million, fifty-two thousand, eight hundred sixty".