50218385187 has 4 divisors (see below), whose sum is σ = 66957846920. Its totient is φ = 33478923456.

The previous prime is 50218385177. The next prime is 50218385197. The reversal of 50218385187 is 78158381205.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (50218385177) and next prime (50218385197).

It is not a de Polignac number, because 50218385187 - 2⁶ = 50218385123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50218385177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8369730862 + ... + 8369730867.

It is an arithmetic number, because the mean of its divisors is an integer number (16739461730).

Almost surely, 2^50218385187 is an apocalyptic number.

50218385187 is a deficient number, since it is larger than the sum of its proper divisors (16739461733).

50218385187 is a wasteful number, since it uses less digits than its factorization.

50218385187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16739461732.

The product of its (nonzero) digits is 537600, while the sum is 48.

The spelling of 50218385187 in words is "fifty billion, two hundred eighteen million, three hundred eighty-five thousand, one hundred eighty-seven".