500050499991 has 16 divisors (see below), whose sum is σ = 762699921408. Its totient is φ = 285473815200.

The previous prime is 500050499953. The next prime is 500050500007. The reversal of 500050499991 is 199994050005.

It is a happy number.

It is not a de Polignac number, because 500050499991 - 2¹⁴ = 500050483607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500050499911) 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, 11199175 + ... + 11243736.

It is an arithmetic number, because the mean of its divisors is an integer number (47668745088).

Almost surely, 2^500050499991 is an apocalyptic number.

500050499991 is a deficient number, since it is larger than the sum of its proper divisors (262649421417).

500050499991 is a wasteful number, since it uses less digits than its factorization.

500050499991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22443982.

The product of its (nonzero) digits is 656100, while the sum is 51.

The spelling of 500050499991 in words is "five hundred billion, fifty million, four hundred ninety-nine thousand, nine hundred ninety-one".