21824210063 has 8 divisors (see below), whose sum is σ = 21895446480. Its totient is φ = 21753083520.

The previous prime is 21824210041. The next prime is 21824210069. The reversal of 21824210063 is 36001242812.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21824210063 - 2⁸ = 21824209807 is a prime.

It is a super-2 number, since 2×21824210063² (a number of 21 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 (21824210069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 380231 + ... + 433847.

It is an arithmetic number, because the mean of its divisors is an integer number (2736930810).

Almost surely, 2^21824210063 is an apocalyptic number.

21824210063 is a deficient number, since it is larger than the sum of its proper divisors (71236417).

21824210063 is an equidigital number, since it uses as much as digits as its factorization.

21824210063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54937.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 21824210063 its reverse (36001242812), we get a palindrome (57825452875).

The spelling of 21824210063 in words is "twenty-one billion, eight hundred twenty-four million, two hundred ten thousand, sixty-three".