128152856188 has 72 divisors (see below), whose sum is σ = 262615288320. Its totient is φ = 54558897120.

The previous prime is 128152856093. The next prime is 128152856239. The reversal of 128152856188 is 881658251821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24273333 + ... + 24278611.

It is an arithmetic number, because the mean of its divisors is an integer number (3647434560).

Almost surely, 2^128152856188 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128152856188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131307644160).

128152856188 is an abundant number, since it is smaller than the sum of its proper divisors (134462432132).

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

128152856188 is a wasteful number, since it uses less digits than its factorization.

128152856188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6095 (or 6086 counting only the distinct ones).

The product of its digits is 2457600, while the sum is 55.

The spelling of 128152856188 in words is "one hundred twenty-eight billion, one hundred fifty-two million, eight hundred fifty-six thousand, one hundred eighty-eight".