128488132444488 has 64 divisors (see below), whose sum is σ = 338136126240000. Its totient is φ = 40574064290112.

The previous prime is 128488132444457. The next prime is 128488132444513. The reversal of 128488132444488 is 884444231884821.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12445431 + ... + 20294457.

It is an arithmetic number, because the mean of its divisors is an integer number (5283376972500).

Almost surely, 2^{128488132444488} is an apocalyptic number.

It is an amenable number.

128488132444488 is an abundant number, since it is smaller than the sum of its proper divisors (209647993795512).

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

128488132444488 is a wasteful number, since it uses less digits than its factorization.

128488132444488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7884954 (or 7884950 counting only the distinct ones).

The product of its digits is 402653184, while the sum is 69.

The spelling of 128488132444488 in words is "one hundred twenty-eight trillion, four hundred eighty-eight billion, one hundred thirty-two million, four hundred forty-four thousand, four hundred eighty-eight".