128800571888440 has 16 divisors (see below), whose sum is σ = 289801286749080. Its totient is φ = 51520228755360.

The previous prime is 128800571888419. The next prime is 128800571888467. The reversal of 128800571888440 is 44888175008821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1610007148566 + ... + 1610007148645.

Almost surely, 2^{128800571888440} is an apocalyptic number.

128800571888440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128800571888440 is an abundant number, since it is smaller than the sum of its proper divisors (161000714860640).

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

128800571888440 is a wasteful number, since it uses less digits than its factorization.

128800571888440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3220014297222 (or 3220014297218 counting only the distinct ones).

The product of its (nonzero) digits is 36700160, while the sum is 64.

The spelling of 128800571888440 in words is "one hundred twenty-eight trillion, eight hundred billion, five hundred seventy-one million, eight hundred eighty-eight thousand, four hundred forty".