494294587987199 has 4 divisors (see below), whose sum is σ = 494301980701536. Its totient is φ = 494287195272864.

The previous prime is 494294587987177. The next prime is 494294587987217. The reversal of 494294587987199 is 991789785492494.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-494294587987199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (494234587987199) 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 in 3 ways as a sum of consecutive naturals, for example, 3696256874 + ... + 3696390599.

It is an arithmetic number, because the mean of its divisors is an integer number (123575495175384).

Almost surely, 2^{494294587987199} is an apocalyptic number.

494294587987199 is a deficient number, since it is larger than the sum of its proper divisors (7392714337).

494294587987199 is an equidigital number, since it uses as much as digits as its factorization.

494294587987199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7392714336.

The product of its digits is 118513704960, while the sum is 95.

The spelling of 494294587987199 in words is "four hundred ninety-four trillion, two hundred ninety-four billion, five hundred eighty-seven million, nine hundred eighty-seven thousand, one hundred ninety-nine".