50189009920 has 352 divisors, whose sum is σ = 143375155200. Its totient is φ = 16495902720.

The previous prime is 50189009887. The next prime is 50189009947. The reversal of 50189009920 is 2990098105.

50189009920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 221096847 + ... + 221097073.

Almost surely, 2^50189009920 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 50189009920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71687577600).

50189009920 is an abundant number, since it is smaller than the sum of its proper divisors (93186145280).

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

50189009920 is a wasteful number, since it uses less digits than its factorization.

50189009920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489 (or 471 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 43.

The spelling of 50189009920 in words is "fifty billion, one hundred eighty-nine million, nine thousand, nine hundred twenty".