50091868191 has 16 divisors (see below), whose sum is σ = 67461004800. Its totient is φ = 33058759200.

The previous prime is 50091868159. The next prime is 50091868213. The reversal of 50091868191 is 19186819005.

50091868191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 50091868191 - 2⁵ = 50091868159 is a prime.

It is a super-2 number, since 2×50091868191² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 50091868191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50091868691) 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, 3446646 + ... + 3461148.

It is an arithmetic number, because the mean of its divisors is an integer number (4216312800).

Almost surely, 2^50091868191 is an apocalyptic number.

50091868191 is a deficient number, since it is larger than the sum of its proper divisors (17369136609).

50091868191 is a wasteful number, since it uses less digits than its factorization.

50091868191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26006.

The product of its (nonzero) digits is 155520, while the sum is 48.

The spelling of 50091868191 in words is "fifty billion, ninety-one million, eight hundred sixty-eight thousand, one hundred ninety-one".