128134702080 has 1584 divisors, whose sum is σ = 577607721600. Its totient is φ = 26227998720.

The previous prime is 128134702063. The next prime is 128134702139. The reversal of 128134702080 is 80207431821.

128134702080 is a `hidden beast` number, since 12 + 81 + 3 + 470 + 20 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (1584).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1912458207 + ... + 1912458273.

Almost surely, 2^128134702080 is an apocalyptic number.

128134702080 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 128134702080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288803860800).

128134702080 is an abundant number, since it is smaller than the sum of its proper divisors (449473019520).

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

128134702080 is a wasteful number, since it uses less digits than its factorization.

128134702080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The spelling of 128134702080 in words is "one hundred twenty-eight billion, one hundred thirty-four million, seven hundred two thousand, eighty".