128798681088 has 1152 divisors, whose sum is σ = 484009344000. Its totient is φ = 29974855680.

The previous prime is 128798681083. The next prime is 128798681149. The reversal of 128798681088 is 880186897821.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (128798681083) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1447176148 + ... + 1447176236.

It is an arithmetic number, because the mean of its divisors is an integer number (420147000).

Almost surely, 2^128798681088 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 128798681088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242004672000).

128798681088 is an abundant number, since it is smaller than the sum of its proper divisors (355210662912).

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

128798681088 is a wasteful number, since it uses less digits than its factorization.

128798681088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 24772608, while the sum is 66.

The spelling of 128798681088 in words is "one hundred twenty-eight billion, seven hundred ninety-eight million, six hundred eighty-one thousand, eighty-eight".