50489989416 has 256 divisors, whose sum is σ = 153913344000. Its totient is φ = 15276107520.

The previous prime is 50489989391. The next prime is 50489989423. The reversal of 50489989416 is 61498998405.

50489989416 is a `hidden beast` number, since 50 + 4 + 8 + 99 + 89 + 416 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13102146 + ... + 13105998.

It is an arithmetic number, because the mean of its divisors is an integer number (601224000).

Almost surely, 2^50489989416 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 50489989416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76956672000).

50489989416 is an abundant number, since it is smaller than the sum of its proper divisors (103423354584).

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

50489989416 is a wasteful number, since it uses less digits than its factorization.

50489989416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4021 (or 4011 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 63.

The spelling of 50489989416 in words is "fifty billion, four hundred eighty-nine million, nine hundred eighty-nine thousand, four hundred sixteen".