128073302280 has 1280 divisors, whose sum is σ = 579591936000. Its totient is φ = 24559718400.

The previous prime is 128073302263. The next prime is 128073302293. The reversal of 128073302280 is 82203370821.

It is a happy number.

128073302280 is a `hidden beast` number, since 1 + 2 + 8 + 0 + 73 + 302 + 280 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 194344591 + ... + 194345249.

It is an arithmetic number, because the mean of its divisors is an integer number (452806200).

Almost surely, 2^128073302280 is an apocalyptic number.

128073302280 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 128073302280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289795968000).

128073302280 is an abundant number, since it is smaller than the sum of its proper divisors (451518633720).

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

128073302280 is a wasteful number, since it uses less digits than its factorization.

128073302280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760 (or 747 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 128073302280 in words is "one hundred twenty-eight billion, seventy-three million, three hundred two thousand, two hundred eighty".