494945841321 has 12 divisors (see below), whose sum is σ = 725592245872. Its totient is φ = 325039059576.

The previous prime is 494945841317. The next prime is 494945841343. The reversal of 494945841321 is 123148549494.

494945841321 is a `hidden beast` number, since 4 + 9 + 49 + 4 + 584 + 13 + 2 + 1 = 666.

It is not a de Polignac number, because 494945841321 - 2² = 494945841317 is a prime.

It is a super-2 number, since 2×494945841321² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (494945841371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 410402251 + ... + 410403456.

Almost surely, 2^494945841321 is an apocalyptic number.

It is an amenable number.

494945841321 is a deficient number, since it is larger than the sum of its proper divisors (230646404551).

494945841321 is a wasteful number, since it uses less digits than its factorization.

494945841321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820805780 (or 820805777 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The spelling of 494945841321 in words is "four hundred ninety-four billion, nine hundred forty-five million, eight hundred forty-one thousand, three hundred twenty-one".