50380289809 has 16 divisors (see below), whose sum is σ = 54280028160. Its totient is φ = 46623764880.

The previous prime is 50380289801. The next prime is 50380289831. The reversal of 50380289809 is 90898208305.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 50380289809 - 2³ = 50380289801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50380289801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4477012 + ... + 4488250.

It is an arithmetic number, because the mean of its divisors is an integer number (3392501760).

Almost surely, 2^50380289809 is an apocalyptic number.

It is an amenable number.

50380289809 is a deficient number, since it is larger than the sum of its proper divisors (3899738351).

50380289809 is a wasteful number, since it uses less digits than its factorization.

50380289809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17580.

The product of its (nonzero) digits is 1244160, while the sum is 52.

The spelling of 50380289809 in words is "fifty billion, three hundred eighty million, two hundred eighty-nine thousand, eight hundred nine".