50709128008 has 128 divisors (see below), whose sum is σ = 123929118720. Its totient is φ = 18862018560.

The previous prime is 50709127979. The next prime is 50709128017. The reversal of 50709128008 is 80082190705.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8171835 + ... + 8178037.

It is an arithmetic number, because the mean of its divisors is an integer number (968196240).

Almost surely, 2^50709128008 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 50709128008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61964559360).

50709128008 is an abundant number, since it is smaller than the sum of its proper divisors (73219990712).

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

50709128008 is a wasteful number, since it uses less digits than its factorization.

50709128008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6827 (or 6823 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 40.

The spelling of 50709128008 in words is "fifty billion, seven hundred nine million, one hundred twenty-eight thousand, eight".