128849018880 has 136 divisors (see below), whose sum is σ = 412316860392. Its totient is φ = 34359738368.

The previous prime is 128849018861. The next prime is 128849018923. The reversal of 128849018880 is 88810948821.

It is a Jordan-Polya number, since it can be written as 5! ⋅ (2!)³⁰.

It is a nialpdrome in base 2.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 128849018880.

It is a congruent number.

It is an unprimeable number.

In principle, a polygon with 128849018880 sides can be constructed with ruler and compass.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25769803774 + ... + 25769803778.

Almost surely, 2^128849018880 is an apocalyptic number.

128849018880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128849018880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206158430196).

128849018880 is an abundant number, since it is smaller than the sum of its proper divisors (283467841512).

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

128849018880 is an frugal number, since it uses more digits than its factorization.

128849018880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74 (or 10 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 57.

The spelling of 128849018880 in words is "one hundred twenty-eight billion, eight hundred forty-nine million, eighteen thousand, eight hundred eighty".