50646435839 has 4 divisors (see below), whose sum is σ = 50652507456. Its totient is φ = 50640364224.

The previous prime is 50646435823. The next prime is 50646435841. The reversal of 50646435839 is 93853464605.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93853464605 = 5 ⋅18770692921.

It is a cyclic number.

It is not a de Polignac number, because 50646435839 - 2⁴ = 50646435823 is a prime.

It is a super-2 number, since 2×50646435839² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50646435859) 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, 3023279 + ... + 3039984.

It is an arithmetic number, because the mean of its divisors is an integer number (12663126864).

Almost surely, 2^50646435839 is an apocalyptic number.

50646435839 is a deficient number, since it is larger than the sum of its proper divisors (6071617).

50646435839 is an equidigital number, since it uses as much as digits as its factorization.

50646435839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6071616.

The product of its (nonzero) digits is 9331200, while the sum is 53.

The spelling of 50646435839 in words is "fifty billion, six hundred forty-six million, four hundred thirty-five thousand, eight hundred thirty-nine".