128489885160 has 512 divisors, whose sum is σ = 489568665600. Its totient is φ = 26258411520.

The previous prime is 128489885159. The next prime is 128489885179. The reversal of 128489885160 is 61588984821.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 128489885094 and 128489885103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 44628601 + ... + 44631479.

It is an arithmetic number, because the mean of its divisors is an integer number (956188800).

Almost surely, 2^128489885160 is an apocalyptic number.

128489885160 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 128489885160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244784332800).

128489885160 is an abundant number, since it is smaller than the sum of its proper divisors (361078780440).

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

128489885160 is a wasteful number, since it uses less digits than its factorization.

128489885160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3041 (or 3037 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 60.

The spelling of 128489885160 in words is "one hundred twenty-eight billion, four hundred eighty-nine million, eight hundred eighty-five thousand, one hundred sixty".