50318401920 has 128 divisors (see below), whose sum is σ = 161205279840. Its totient is φ = 13350027264.

The previous prime is 50318401907. The next prime is 50318401957. The reversal of 50318401920 is 2910481305.

50318401920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311724 + ... + 444756.

Almost surely, 2^50318401920 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 50318401920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80602639920).

50318401920 is an abundant number, since it is smaller than the sum of its proper divisors (110886877920).

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

50318401920 is a wasteful number, since it uses less digits than its factorization.

50318401920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133252 (or 133240 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The spelling of 50318401920 in words is "fifty billion, three hundred eighteen million, four hundred one thousand, nine hundred twenty".