128084667800 has 96 divisors (see below), whose sum is σ = 310877200800. Its totient is φ = 48985390080.

The previous prime is 128084667797. The next prime is 128084667839. The reversal of 128084667800 is 8766480821.

128084667800 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (50).

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, 14757062 + ... + 14765738.

It is an arithmetic number, because the mean of its divisors is an integer number (3238304175).

Almost surely, 2^128084667800 is an apocalyptic number.

128084667800 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 128084667800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155438600400).

128084667800 is an abundant number, since it is smaller than the sum of its proper divisors (182792533000).

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

128084667800 is a wasteful number, since it uses less digits than its factorization.

128084667800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11925 (or 11916 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 50.

The spelling of 128084667800 in words is "one hundred twenty-eight billion, eighty-four million, six hundred sixty-seven thousand, eight hundred".