50380509816 has 512 divisors, whose sum is σ = 179988480000. Its totient is φ = 12700385280.

The previous prime is 50380509799. The next prime is 50380509841. The reversal of 50380509816 is 61890508305.

50380509816 is a `hidden beast` number, since 50 + 3 + 80 + 509 + 8 + 16 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 54230440 + ... + 54231368.

It is an arithmetic number, because the mean of its divisors is an integer number (351540000).

Almost surely, 2^50380509816 is an apocalyptic number.

50380509816 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50380509816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89994240000).

50380509816 is an abundant number, since it is smaller than the sum of its proper divisors (129607970184).

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

50380509816 is a wasteful number, since it uses less digits than its factorization.

50380509816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084 (or 1074 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 45.

The spelling of 50380509816 in words is "fifty billion, three hundred eighty million, five hundred nine thousand, eight hundred sixteen".