50135681243 has 2 divisors, whose sum is σ = 50135681244. Its totient is φ = 50135681242.

The previous prime is 50135681201. The next prime is 50135681263. The reversal of 50135681243 is 34218653105.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50135681243 - 2⁶ = 50135681179 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 50135681197 and 50135681206.

It is not a weakly prime, because it can be changed into another prime (50135681263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25067840621 + 25067840622.

It is an arithmetic number, because the mean of its divisors is an integer number (25067840622).

Almost surely, 2^50135681243 is an apocalyptic number.

50135681243 is a deficient number, since it is larger than the sum of its proper divisors (1).

50135681243 is an equidigital number, since it uses as much as digits as its factorization.

50135681243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 50135681243 in words is "fifty billion, one hundred thirty-five million, six hundred eighty-one thousand, two hundred forty-three".