128680200000 has 1008 divisors, whose sum is σ = 515698118208. Its totient is φ = 30412800000.

The previous prime is 128680199981. The next prime is 128680200017. The reversal of 128680200000 is 2086821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1326599952 + ... + 1326600048.

It is an arithmetic number, because the mean of its divisors is an integer number (511605276).

Almost surely, 2^128680200000 is an apocalyptic number.

128680200000 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 128680200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257849059104).

128680200000 is an abundant number, since it is smaller than the sum of its proper divisors (387017918208).

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

128680200000 is an equidigital number, since it uses as much as digits as its factorization.

128680200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

Adding to 128680200000 its reverse (2086821), we get a palindrome (128682286821).

The spelling of 128680200000 in words is "one hundred twenty-eight billion, six hundred eighty million, two hundred thousand".