50431626209 has 2 divisors, whose sum is σ = 50431626210. Its totient is φ = 50431626208.

The previous prime is 50431626191. The next prime is 50431626227. The reversal of 50431626209 is 90262613405.

It is a balanced prime because it is at equal distance from previous prime (50431626191) and next prime (50431626227).

It can be written as a sum of positive squares in only one way, i.e., 32201225809 + 18230400400 = 179447^2 + 135020^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50431626209 is a prime.

It is not a weakly prime, because it can be changed into another prime (50431626229) 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, 25215813104 + 25215813105.

It is an arithmetic number, because the mean of its divisors is an integer number (25215813105).

Almost surely, 2^50431626209 is an apocalyptic number.

It is an amenable number.

50431626209 is a deficient number, since it is larger than the sum of its proper divisors (1).

50431626209 is an equidigital number, since it uses as much as digits as its factorization.

50431626209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 50431626209 in words is "fifty billion, four hundred thirty-one million, six hundred twenty-six thousand, two hundred nine".