499999636499983 has 2 divisors, whose sum is σ = 499999636499984. Its totient is φ = 499999636499982.

The previous prime is 499999636499977. The next prime is 499999636500019. The reversal of 499999636499983 is 389994636999994.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-499999636499983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499999636499183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249999818249991 + 249999818249992.

It is an arithmetic number, because the mean of its divisors is an integer number (249999818249992).

Almost surely, 2^{499999636499983} is an apocalyptic number.

499999636499983 is a deficient number, since it is larger than the sum of its proper divisors (1).

499999636499983 is an equidigital number, since it uses as much as digits as its factorization.

499999636499983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1785233613312, while the sum is 106.

The spelling of 499999636499983 in words is "four hundred ninety-nine trillion, nine hundred ninety-nine billion, six hundred thirty-six million, four hundred ninety-nine thousand, nine hundred eighty-three".