63042221921 has 8 divisors (see below), whose sum is σ = 72747752064. Its totient is φ = 53511566400.

The previous prime is 63042221873. The next prime is 63042221923. The reversal of 63042221921 is 12912224036.

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 63042221921 - 2¹⁰ = 63042220897 is a prime.

It is a super-2 number, since 2×63042221921² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63042221923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43717880 + ... + 43719321.

It is an arithmetic number, because the mean of its divisors is an integer number (9093469008).

Almost surely, 2^63042221921 is an apocalyptic number.

It is an amenable number.

63042221921 is a deficient number, since it is larger than the sum of its proper divisors (9705530143).

63042221921 is a wasteful number, since it uses less digits than its factorization.

63042221921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87437311.

The product of its (nonzero) digits is 10368, while the sum is 32.

Adding to 63042221921 its reverse (12912224036), we get a palindrome (75954445957).

The spelling of 63042221921 in words is "sixty-three billion, forty-two million, two hundred twenty-one thousand, nine hundred twenty-one".