50742400128 has 256 divisors, whose sum is σ = 157546425600. Its totient is φ = 14169931776.

The previous prime is 50742400099. The next prime is 50742400151. The reversal of 50742400128 is 82100424705.

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, 50289288 + ... + 50290296.

It is an arithmetic number, because the mean of its divisors is an integer number (615415725).

Almost surely, 2^50742400128 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 50742400128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78773212800).

50742400128 is an abundant number, since it is smaller than the sum of its proper divisors (106804025472).

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

50742400128 is a wasteful number, since it uses less digits than its factorization.

50742400128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439 (or 1427 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 33.

The spelling of 50742400128 in words is "fifty billion, seven hundred forty-two million, four hundred thousand, one hundred twenty-eight".