499129687827 has 6 divisors (see below), whose sum is σ = 720965104652. Its totient is φ = 332753125212.

The previous prime is 499129687817. The next prime is 499129687867. The reversal of 499129687827 is 728786921994.

499129687827 is a `hidden beast` number, since 499 + 1 + 2 + 9 + 68 + 78 + 2 + 7 = 666.

It is not a de Polignac number, because 499129687827 - 2⁸ = 499129687571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (499129687817) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27729427093 + ... + 27729427110.

Almost surely, 2^499129687827 is an apocalyptic number.

499129687827 is a deficient number, since it is larger than the sum of its proper divisors (221835416825).

499129687827 is a wasteful number, since it uses less digits than its factorization.

499129687827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55458854209 (or 55458854206 counting only the distinct ones).

The product of its digits is 219469824, while the sum is 72.

The spelling of 499129687827 in words is "four hundred ninety-nine billion, one hundred twenty-nine million, six hundred eighty-seven thousand, eight hundred twenty-seven".