50668729217 has 4 divisors (see below), whose sum is σ = 50675486256. Its totient is φ = 50661972180.

The previous prime is 50668729193. The next prime is 50668729219. The reversal of 50668729217 is 71292786605.

50668729217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50668729217 - 2¹⁶ = 50668663681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50668729219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3367259 + ... + 3382272.

It is an arithmetic number, because the mean of its divisors is an integer number (12668871564).

Almost surely, 2^50668729217 is an apocalyptic number.

It is an amenable number.

50668729217 is a deficient number, since it is larger than the sum of its proper divisors (6757039).

50668729217 is an equidigital number, since it uses as much as digits as its factorization.

50668729217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6757038.

The product of its (nonzero) digits is 2540160, while the sum is 53.

The spelling of 50668729217 in words is "fifty billion, six hundred sixty-eight million, seven hundred twenty-nine thousand, two hundred seventeen".