128033329842 has 96 divisors (see below), whose sum is σ = 316072186560. Its totient is φ = 37109439360.

The previous prime is 128033329817. The next prime is 128033329877. The reversal of 128033329842 is 248923330821.

128033329842 is a `hidden beast` number, since 1 + 28 + 0 + 333 + 298 + 4 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 284128 + ... + 580340.

It is an arithmetic number, because the mean of its divisors is an integer number (3292418610).

Almost surely, 2^128033329842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128033329842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158036093280).

128033329842 is an abundant number, since it is smaller than the sum of its proper divisors (188038856718).

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

128033329842 is a wasteful number, since it uses less digits than its factorization.

128033329842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296328 (or 296325 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 128033329842 in words is "one hundred twenty-eight billion, thirty-three million, three hundred twenty-nine thousand, eight hundred forty-two".