50516218839 has 8 divisors (see below), whose sum is σ = 67768179712. Its totient is φ = 33470868600.

The previous prime is 50516218789. The next prime is 50516218853. The reversal of 50516218839 is 93881261505.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50516218839 - 2²¹ = 50514121687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50516218639) 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 7 ways as a sum of consecutive naturals, for example, 51652087 + ... + 51653064.

It is an arithmetic number, because the mean of its divisors is an integer number (8471022464).

Almost surely, 2^50516218839 is an apocalyptic number.

50516218839 is a deficient number, since it is larger than the sum of its proper divisors (17251960873).

50516218839 is a wasteful number, since it uses less digits than its factorization.

50516218839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103305317.

The product of its (nonzero) digits is 518400, while the sum is 48.

The spelling of 50516218839 in words is "fifty billion, five hundred sixteen million, two hundred eighteen thousand, eight hundred thirty-nine".