499866008989 has 2 divisors, whose sum is σ = 499866008990. Its totient is φ = 499866008988.

The previous prime is 499866008963. The next prime is 499866009037. The reversal of 499866008989 is 989800668994.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 294800132025 + 205065876964 = 542955^2 + 452842^2 .

It is a cyclic number.

It is not a de Polignac number, because 499866008989 - 2¹³ = 499866000797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (499866008689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249933004494 + 249933004495.

It is an arithmetic number, because the mean of its divisors is an integer number (249933004495).

Almost surely, 2^499866008989 is an apocalyptic number.

It is an amenable number.

499866008989 is a deficient number, since it is larger than the sum of its proper divisors (1).

499866008989 is an equidigital number, since it uses as much as digits as its factorization.

499866008989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483729408, while the sum is 76.

The spelling of 499866008989 in words is "four hundred ninety-nine billion, eight hundred sixty-six million, eight thousand, nine hundred eighty-nine".