128342884320 has 768 divisors, whose sum is σ = 531691776000. Its totient is φ = 28305801216.

The previous prime is 128342884301. The next prime is 128342884337. The reversal of 128342884320 is 23488243821.

128342884320 is a `hidden beast` number, since 1 + 283 + 42 + 8 + 8 + 4 + 320 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 115727926 + ... + 115729034.

It is an arithmetic number, because the mean of its divisors is an integer number (692307000).

Almost surely, 2^128342884320 is an apocalyptic number.

128342884320 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 128342884320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265845888000).

128342884320 is an abundant number, since it is smaller than the sum of its proper divisors (403348891680).

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

128342884320 is a wasteful number, since it uses less digits than its factorization.

128342884320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1272 (or 1258 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 45.

The spelling of 128342884320 in words is "one hundred twenty-eight billion, three hundred forty-two million, eight hundred eighty-four thousand, three hundred twenty".