128200814688 has 144 divisors (see below), whose sum is σ = 346881555216. Its totient is φ = 41443184640.

The previous prime is 128200814657. The next prime is 128200814701. The reversal of 128200814688 is 886418002821.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 40300458 + ... + 40303638.

It is an arithmetic number, because the mean of its divisors is an integer number (2408899689).

Almost surely, 2^128200814688 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 128200814688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173440777608).

128200814688 is an abundant number, since it is smaller than the sum of its proper divisors (218680740528).

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

128200814688 is an equidigital number, since it uses as much as digits as its factorization.

128200814688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3425 (or 3328 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 48.

The spelling of 128200814688 in words is "one hundred twenty-eight billion, two hundred million, eight hundred fourteen thousand, six hundred eighty-eight".