50191420071 has 16 divisors (see below), whose sum is σ = 72099611136. Its totient is φ = 30874222176.

The previous prime is 50191420063. The next prime is 50191420073. The reversal of 50191420071 is 17002419105.

It is not a de Polignac number, because 50191420071 - 2³ = 50191420063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50191420073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171075 + ... + 360068.

It is an arithmetic number, because the mean of its divisors is an integer number (4506225696).

Almost surely, 2^50191420071 is an apocalyptic number.

50191420071 is a deficient number, since it is larger than the sum of its proper divisors (21908191065).

50191420071 is a wasteful number, since it uses less digits than its factorization.

50191420071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 533582.

The product of its (nonzero) digits is 2520, while the sum is 30.

Adding to 50191420071 its reverse (17002419105), we get a palindrome (67193839176).

The spelling of 50191420071 in words is "fifty billion, one hundred ninety-one million, four hundred twenty thousand, seventy-one".