50443991808 has 288 divisors, whose sum is σ = 156822220800. Its totient is φ = 14096928768.

The previous prime is 50443991723. The next prime is 50443991837. The reversal of 50443991808 is 80819934405.

50443991808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×50443991808² (a number of 22 digits) contains 22 as substring.

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, 113868835 + ... + 113869277.

It is an arithmetic number, because the mean of its divisors is an integer number (544521600).

Almost surely, 2^50443991808 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 50443991808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78411110400).

50443991808 is an abundant number, since it is smaller than the sum of its proper divisors (106378228992).

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

50443991808 is a wasteful number, since it uses less digits than its factorization.

50443991808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887 (or 873 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The spelling of 50443991808 in words is "fifty billion, four hundred forty-three million, nine hundred ninety-one thousand, eight hundred eight".