128040226800 has 60 divisors (see below), whose sum is σ = 410155530360. Its totient is φ = 34144060160.

The previous prime is 128040226793. The next prime is 128040226817. The reversal of 128040226800 is 8622040821.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53348895 + ... + 53351294.

It is an arithmetic number, because the mean of its divisors is an integer number (6835925506).

Almost surely, 2^128040226800 is an apocalyptic number.

128040226800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128040226800 is an abundant number, since it is smaller than the sum of its proper divisors (282115303560).

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

128040226800 is a wasteful number, since it uses less digits than its factorization.

128040226800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106700210 (or 106700199 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 33.

The spelling of 128040226800 in words is "one hundred twenty-eight billion, forty million, two hundred twenty-six thousand, eight hundred".