50859689409 has 12 divisors (see below), whose sum is σ = 73466128996. Its totient is φ = 33905475072.

The previous prime is 50859689401. The next prime is 50859689431. The reversal of 50859689409 is 90498695805.

50859689409 is a `hidden beast` number, since 508 + 5 + 9 + 6 + 89 + 40 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14138399025 + 36721290384 = 118905^2 + 191628^2 .

It is not a de Polignac number, because 50859689409 - 2³ = 50859689401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50859689401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 385137 + ... + 500049.

Almost surely, 2^50859689409 is an apocalyptic number.

It is an amenable number.

50859689409 is a deficient number, since it is larger than the sum of its proper divisors (22606439587).

50859689409 is a wasteful number, since it uses less digits than its factorization.

50859689409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164096 (or 164093 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 63.

The spelling of 50859689409 in words is "fifty billion, eight hundred fifty-nine million, six hundred eighty-nine thousand, four hundred nine".