63468403221 has 16 divisors (see below), whose sum is σ = 84906557120. Its totient is φ = 42171408000.

The previous prime is 63468403217. The next prime is 63468403223. The reversal of 63468403221 is 12230486436.

63468403221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63468403221 - 2² = 63468403217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63468403221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63468403223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1782846 + ... + 1818096.

It is an arithmetic number, because the mean of its divisors is an integer number (5306659820).

Almost surely, 2^63468403221 is an apocalyptic number.

It is an amenable number.

63468403221 is a deficient number, since it is larger than the sum of its proper divisors (21438153899).

63468403221 is a wasteful number, since it uses less digits than its factorization.

63468403221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37236.

The product of its (nonzero) digits is 165888, while the sum is 39.

Adding to 63468403221 its reverse (12230486436), we get a palindrome (75698889657).

The spelling of 63468403221 in words is "sixty-three billion, four hundred sixty-eight million, four hundred three thousand, two hundred twenty-one".