50809726691 has 2 divisors, whose sum is σ = 50809726692. Its totient is φ = 50809726690.

The previous prime is 50809726657. The next prime is 50809726703. The reversal of 50809726691 is 19662790805.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50809726691 - 2¹⁰ = 50809725667 is a prime.

It is not a weakly prime, because it can be changed into another prime (50809726391) 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 as a sum of consecutive naturals, namely, 25404863345 + 25404863346.

It is an arithmetic number, because the mean of its divisors is an integer number (25404863346).

Almost surely, 2^50809726691 is an apocalyptic number.

50809726691 is a deficient number, since it is larger than the sum of its proper divisors (1).

50809726691 is an equidigital number, since it uses as much as digits as its factorization.

50809726691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1632960, while the sum is 53.

The spelling of 50809726691 in words is "fifty billion, eight hundred nine million, seven hundred twenty-six thousand, six hundred ninety-one".