50811909677 has 4 divisors (see below), whose sum is σ = 50816875740. Its totient is φ = 50806943616.

The previous prime is 50811909647. The next prime is 50811909683. The reversal of 50811909677 is 77690911805.

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 32579889001 + 18232020676 = 180499^2 + 135026^2 .

It is a cyclic number.

It is not a de Polignac number, because 50811909677 - 2³⁴ = 33632040493 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 (50811909607) 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 3 ways as a sum of consecutive naturals, for example, 2467652 + ... + 2488157.

It is an arithmetic number, because the mean of its divisors is an integer number (12704218935).

Almost surely, 2^50811909677 is an apocalyptic number.

It is an amenable number.

50811909677 is a deficient number, since it is larger than the sum of its proper divisors (4966063).

50811909677 is a wasteful number, since it uses less digits than its factorization.

50811909677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4966062.

The product of its (nonzero) digits is 952560, while the sum is 53.

The spelling of 50811909677 in words is "fifty billion, eight hundred eleven million, nine hundred nine thousand, six hundred seventy-seven".