50147508791 has 4 divisors (see below), whose sum is σ = 50159898000. Its totient is φ = 50135119584.

The previous prime is 50147508767. The next prime is 50147508793. The reversal of 50147508791 is 19780574105.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19780574105 = 5 ⋅3956114821.

It is a cyclic number.

It is not a de Polignac number, because 50147508791 - 2³⁰ = 49073766967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50147508793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6188531 + ... + 6196628.

It is an arithmetic number, because the mean of its divisors is an integer number (12539974500).

Almost surely, 2^50147508791 is an apocalyptic number.

50147508791 is a deficient number, since it is larger than the sum of its proper divisors (12389209).

50147508791 is a wasteful number, since it uses less digits than its factorization.

50147508791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12389208.

The product of its (nonzero) digits is 352800, while the sum is 47.

The spelling of 50147508791 in words is "fifty billion, one hundred forty-seven million, five hundred eight thousand, seven hundred ninety-one".