50018331909 has 96 divisors (see below), whose sum is σ = 86987741184. Its totient is φ = 24982214400.

The previous prime is 50018331899. The next prime is 50018331929. The reversal of 50018331909 is 90913381005.

It is not a de Polignac number, because 50018331909 - 2⁴ = 50018331893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50018331929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8241294 + ... + 8247360.

It is an arithmetic number, because the mean of its divisors is an integer number (906122304).

Almost surely, 2^50018331909 is an apocalyptic number.

It is an amenable number.

50018331909 is a deficient number, since it is larger than the sum of its proper divisors (36969409275).

50018331909 is a wasteful number, since it uses less digits than its factorization.

50018331909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6227 (or 6214 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 39.

The spelling of 50018331909 in words is "fifty billion, eighteen million, three hundred thirty-one thousand, nine hundred nine".