494810249471999 has 2 divisors, whose sum is σ = 494810249472000. Its totient is φ = 494810249471998.

The previous prime is 494810249471977. The next prime is 494810249472013. The reversal of 494810249471999 is 999174942018494.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-494810249471999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (494810249471929) 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, 247405124735999 + 247405124736000.

It is an arithmetic number, because the mean of its divisors is an integer number (247405124736000).

Almost surely, 2^{494810249471999} is an apocalyptic number.

494810249471999 is a deficient number, since it is larger than the sum of its proper divisors (1).

494810249471999 is an equidigital number, since it uses as much as digits as its factorization.

494810249471999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1693052928, while the sum is 80.

The spelling of 494810249471999 in words is "four hundred ninety-four trillion, eight hundred ten billion, two hundred forty-nine million, four hundred seventy-one thousand, nine hundred ninety-nine".