128810911488 has 288 divisors, whose sum is σ = 401258457600. Its totient is φ = 36668620800.

The previous prime is 128810911417. The next prime is 128810911511. The reversal of 128810911488 is 884119018821.

It is a self number, because there is not a number n which added to its sum of digits gives 128810911488.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88773163 + ... + 88774613.

Almost surely, 2^128810911488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128810911488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200629228800).

128810911488 is an abundant number, since it is smaller than the sum of its proper divisors (272447546112).

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

128810911488 is an equidigital number, since it uses as much as digits as its factorization.

128810911488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1828 (or 1800 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 51.

The spelling of 128810911488 in words is "one hundred twenty-eight billion, eight hundred ten million, nine hundred eleven thousand, four hundred eighty-eight".