563230690821 has 24 divisors (see below), whose sum is σ = 819208395200. Its totient is φ = 372885296256.

The previous prime is 563230690817. The next prime is 563230690823. The reversal of 563230690821 is 128096032365.

563230690821 is a `hidden beast` number, since 5 + 632 + 3 + 0 + 6 + 9 + 0 + 8 + 2 + 1 = 666.

It is not a de Polignac number, because 563230690821 - 2² = 563230690817 is a prime.

It is a super-2 number, since 2×563230690821² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563230690823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 636045 + ... + 1237341.

Almost surely, 2^563230690821 is an apocalyptic number.

It is an amenable number.

563230690821 is a deficient number, since it is larger than the sum of its proper divisors (255977704379).

563230690821 is a wasteful number, since it uses less digits than its factorization.

563230690821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602025 (or 602022 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 563230690821 in words is "five hundred sixty-three billion, two hundred thirty million, six hundred ninety thousand, eight hundred twenty-one".