128793049008 has 80 divisors (see below), whose sum is σ = 358815471840. Its totient is φ = 39572600832.

The previous prime is 128793048983. The next prime is 128793049027. The reversal of 128793049008 is 800940397821.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296860 + ... + 587972.

It is an arithmetic number, because the mean of its divisors is an integer number (4485193398).

Almost surely, 2^128793049008 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 128793049008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179407735920).

128793049008 is an abundant number, since it is smaller than the sum of its proper divisors (230022422832).

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

128793049008 is a wasteful number, since it uses less digits than its factorization.

128793049008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291846 (or 291840 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 51.

The spelling of 128793049008 in words is "one hundred twenty-eight billion, seven hundred ninety-three million, forty-nine thousand, eight".