494371166813 has 2 divisors, whose sum is σ = 494371166814. Its totient is φ = 494371166812.

The previous prime is 494371166749. The next prime is 494371166833. The reversal of 494371166813 is 318661173494.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 411088710244 + 83282456569 = 641162^2 + 288587^2 .

It is a cyclic number.

It is not a de Polignac number, because 494371166813 - 2⁶ = 494371166749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (494371166833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247185583406 + 247185583407.

It is an arithmetic number, because the mean of its divisors is an integer number (247185583407).

Almost surely, 2^494371166813 is an apocalyptic number.

It is an amenable number.

494371166813 is a deficient number, since it is larger than the sum of its proper divisors (1).

494371166813 is an equidigital number, since it uses as much as digits as its factorization.

494371166813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 53.

The spelling of 494371166813 in words is "four hundred ninety-four billion, three hundred seventy-one million, one hundred sixty-six thousand, eight hundred thirteen".