50133831391 has 16 divisors (see below), whose sum is σ = 58387065408. Its totient is φ = 42153696000.

The previous prime is 50133831367. The next prime is 50133831413. The reversal of 50133831391 is 19313833105.

It is a cyclic number.

It is not a de Polignac number, because 50133831391 - 2⁵ = 50133831359 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50133831391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50133835391) 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, 3599541 + ... + 3613441.

It is an arithmetic number, because the mean of its divisors is an integer number (3649191588).

Almost surely, 2^50133831391 is an apocalyptic number.

50133831391 is a deficient number, since it is larger than the sum of its proper divisors (8253234017).

50133831391 is a wasteful number, since it uses less digits than its factorization.

50133831391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23682.

The product of its (nonzero) digits is 29160, while the sum is 37.

The spelling of 50133831391 in words is "fifty billion, one hundred thirty-three million, eight hundred thirty-one thousand, three hundred ninety-one".