50486788921 has 16 divisors (see below), whose sum is σ = 54280062144. Its totient is φ = 46785682944.

The previous prime is 50486788907. The next prime is 50486788931. The reversal of 50486788921 is 12988768405.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 50486788921 - 2¹¹ = 50486786873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50486788901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2716366 + ... + 2734888.

It is an arithmetic number, because the mean of its divisors is an integer number (3392503884).

Almost surely, 2^50486788921 is an apocalyptic number.

It is an amenable number.

50486788921 is a deficient number, since it is larger than the sum of its proper divisors (3793273223).

50486788921 is a wasteful number, since it uses less digits than its factorization.

50486788921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21000.

The product of its (nonzero) digits is 7741440, while the sum is 58.

The spelling of 50486788921 in words is "fifty billion, four hundred eighty-six million, seven hundred eighty-eight thousand, nine hundred twenty-one".