128969830000 has 200 divisors, whose sum is σ = 345322848816. Its totient is φ = 46252800000.

The previous prime is 128969829929. The next prime is 128969830061. The reversal of 128969830000 is 38969821.

It is a tau number, because it is divible by the number of its divisors (200).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8021970 + ... + 8038030.

Almost surely, 2^128969830000 is an apocalyptic number.

128969830000 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 128969830000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172661424408).

128969830000 is an abundant number, since it is smaller than the sum of its proper divisors (216353018816).

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

128969830000 is a wasteful number, since it uses less digits than its factorization.

128969830000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16173 (or 16152 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 46.

The spelling of 128969830000 in words is "one hundred twenty-eight billion, nine hundred sixty-nine million, eight hundred thirty thousand".