500005190691 has 48 divisors (see below), whose sum is σ = 776107238400. Its totient is φ = 309471566976.

The previous prime is 500005190687. The next prime is 500005190753. The reversal of 500005190691 is 196091500005.

500005190691 is a `hidden beast` number, since 50 + 0 + 0 + 0 + 519 + 0 + 6 + 91 = 666.

It is not a de Polignac number, because 500005190691 - 2² = 500005190687 is a prime.

It is not an unprimeable number, because it can be changed into a prime (500005190891) 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 47 ways as a sum of consecutive naturals, for example, 705711 + ... + 1223943.

It is an arithmetic number, because the mean of its divisors is an integer number (16168900800).

Almost surely, 2^500005190691 is an apocalyptic number.

500005190691 is a deficient number, since it is larger than the sum of its proper divisors (276102047709).

500005190691 is a wasteful number, since it uses less digits than its factorization.

500005190691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518400 (or 518397 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 36.

Adding to 500005190691 its reverse (196091500005), we get a palindrome (696096690696).

The spelling of 500005190691 in words is "five hundred billion, five million, one hundred ninety thousand, six hundred ninety-one".