50818867277 has 4 divisors (see below), whose sum is σ = 50888197980. Its totient is φ = 50749536576.

The previous prime is 50818867273. The next prime is 50818867303. The reversal of 50818867277 is 77276881805.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77276881805 = 5 ⋅15455376361.

It can be written as a sum of positive squares in 2 ways, for example, as 40460920201 + 10357947076 = 201149^2 + 101774^2 .

It is a cyclic number.

It is not a de Polignac number, because 50818867277 - 2² = 50818867273 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 (50818867273) 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, 34664252 + ... + 34665717.

It is an arithmetic number, because the mean of its divisors is an integer number (12722049495).

Almost surely, 2^50818867277 is an apocalyptic number.

It is an amenable number.

50818867277 is a deficient number, since it is larger than the sum of its proper divisors (69330703).

50818867277 is an equidigital number, since it uses as much as digits as its factorization.

50818867277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69330702.

The product of its (nonzero) digits is 10536960, while the sum is 59.

The spelling of 50818867277 in words is "fifty billion, eight hundred eighteen million, eight hundred sixty-seven thousand, two hundred seventy-seven".