128796841584 has 200 divisors, whose sum is σ = 392771111040. Its totient is φ = 40633736832.

The previous prime is 128796841559. The next prime is 128796841669. The reversal of 128796841584 is 485148697821.

128796841584 is a `hidden beast` number, since 1 + 2 + 8 + 7 + 9 + 6 + 8 + 41 + 584 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 36515629 + ... + 36519155.

Almost surely, 2^128796841584 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 128796841584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196385555520).

128796841584 is an abundant number, since it is smaller than the sum of its proper divisors (263974269456).

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

128796841584 is a wasteful number, since it uses less digits than its factorization.

128796841584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5049 (or 5034 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 63.

The spelling of 128796841584 in words is "one hundred twenty-eight billion, seven hundred ninety-six million, eight hundred forty-one thousand, five hundred eighty-four".