50686343117 has 4 divisors (see below), whose sum is σ = 51134894940. Its totient is φ = 50237791296.

The previous prime is 50686343107. The next prime is 50686343143. The reversal of 50686343117 is 71134368605.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4559760676 + 46126582441 = 67526^2 + 214771^2 .

It is a cyclic number.

It is not a de Polignac number, because 50686343117 - 2³⁴ = 33506473933 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 (50686343107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224275742 + ... + 224275967.

It is an arithmetic number, because the mean of its divisors is an integer number (12783723735).

Almost surely, 2^50686343117 is an apocalyptic number.

It is an amenable number.

50686343117 is a deficient number, since it is larger than the sum of its proper divisors (448551823).

50686343117 is a wasteful number, since it uses less digits than its factorization.

50686343117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448551822.

The product of its (nonzero) digits is 362880, while the sum is 44.

The spelling of 50686343117 in words is "fifty billion, six hundred eighty-six million, three hundred forty-three thousand, one hundred seventeen".