50851944239 has 2 divisors, whose sum is σ = 50851944240. Its totient is φ = 50851944238.

The previous prime is 50851944217. The next prime is 50851944259. The reversal of 50851944239 is 93244915805.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50851944239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50851944259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25425972119 + 25425972120.

It is an arithmetic number, because the mean of its divisors is an integer number (25425972120).

Almost surely, 2^50851944239 is an apocalyptic number.

50851944239 is a deficient number, since it is larger than the sum of its proper divisors (1).

50851944239 is an equidigital number, since it uses as much as digits as its factorization.

50851944239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555200, while the sum is 50.

The spelling of 50851944239 in words is "fifty billion, eight hundred fifty-one million, nine hundred forty-four thousand, two hundred thirty-nine".