128372323200 has 192 divisors, whose sum is σ = 461265477120. Its totient is φ = 31120537600.

The previous prime is 128372323199. The next prime is 128372323217. The reversal of 128372323200 is 2323273821.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 502224 + ... + 713423.

It is an arithmetic number, because the mean of its divisors is an integer number (2402424360).

Almost surely, 2^128372323200 is an apocalyptic number.

128372323200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128372323200 is an abundant number, since it is smaller than the sum of its proper divisors (332893153920).

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

128372323200 is a wasteful number, since it uses less digits than its factorization.

128372323200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215685 (or 1215668 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The spelling of 128372323200 in words is "one hundred twenty-eight billion, three hundred seventy-two million, three hundred twenty-three thousand, two hundred".