50650381728 has 192 divisors, whose sum is σ = 149745335040. Its totient is φ = 16654464000.

The previous prime is 50650381699. The next prime is 50650381739. The reversal of 50650381728 is 82718305605.

It is a super-2 number, since 2×50650381728² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

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 31 ways as a sum of consecutive naturals, for example, 27661773 + ... + 27663603.

It is an arithmetic number, because the mean of its divisors is an integer number (779923620).

Almost surely, 2^50650381728 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 50650381728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74872667520).

50650381728 is an abundant number, since it is smaller than the sum of its proper divisors (99094953312).

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

50650381728 is a wasteful number, since it uses less digits than its factorization.

50650381728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2268 (or 2254 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 50650381728 in words is "fifty billion, six hundred fifty million, three hundred eighty-one thousand, seven hundred twenty-eight".