494721477117 has 20 divisors (see below), whose sum is σ = 844603863136. Its totient is φ = 282697986600.

The previous prime is 494721477083. The next prime is 494721477119. The reversal of 494721477117 is 711774127494.

494721477117 is a `hidden beast` number, since 4 + 94 + 72 + 1 + 477 + 1 + 17 = 666.

It is not a de Polignac number, because 494721477117 - 2²⁶ = 494654368253 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 (494721477119) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 436261759 + ... + 436262892.

Almost surely, 2^494721477117 is an apocalyptic number.

It is an amenable number.

494721477117 is a deficient number, since it is larger than the sum of its proper divisors (349882386019).

494721477117 is an equidigital number, since it uses as much as digits as its factorization.

494721477117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872524670 (or 872524661 counting only the distinct ones).

The product of its digits is 2765952, while the sum is 54.

The spelling of 494721477117 in words is "four hundred ninety-four billion, seven hundred twenty-one million, four hundred seventy-seven thousand, one hundred seventeen".