129233198800 has 120 divisors (see below), whose sum is σ = 326634674400. Its totient is φ = 49064547840.

The previous prime is 129233198749. The next prime is 129233198819. The reversal of 129233198800 is 8891332921.

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 23 ways as a sum of consecutive naturals, for example, 589987 + ... + 778813.

It is an arithmetic number, because the mean of its divisors is an integer number (2721955620).

Almost surely, 2^129233198800 is an apocalyptic number.

129233198800 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 129233198800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163317337200).

129233198800 is an abundant number, since it is smaller than the sum of its proper divisors (197401475600).

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

129233198800 is a wasteful number, since it uses less digits than its factorization.

129233198800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188933 (or 188922 counting only the distinct ones).

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

The spelling of 129233198800 in words is "one hundred twenty-nine billion, two hundred thirty-three million, one hundred ninety-eight thousand, eight hundred".