416813563321 has 3 divisors (see below), whose sum is σ = 416814208933. Its totient is φ = 416812917710.

The previous prime is 416813563319. The next prime is 416813563339. The reversal of 416813563321 is 123365318614.

The square root of 416813563321 is 645611.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 416813563321 - 2¹ = 416813563319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (416813563301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 322806 + ... + 968416.

Almost surely, 2^416813563321 is an apocalyptic number.

416813563321 is the 645611-st square number.

416813563321 is the 322806-th centered octagonal number.

It is an amenable number.

416813563321 is a deficient number, since it is larger than the sum of its proper divisors (645612).

416813563321 is an frugal number, since it uses more digits than its factorization.

416813563321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291222 (or 645611 counting only the distinct ones).

The product of its digits is 311040, while the sum is 43.

The spelling of 416813563321 in words is "four hundred sixteen billion, eight hundred thirteen million, five hundred sixty-three thousand, three hundred twenty-one".