4643562013221 has 16 divisors (see below), whose sum is σ = 6367720313600. Its totient is φ = 3007791880128.

The previous prime is 4643562013219. The next prime is 4643562013231. The reversal of 4643562013221 is 1223102653464.

It is not a de Polignac number, because 4643562013221 - 2¹ = 4643562013219 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 4643562013221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4643562013231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29423341 + ... + 29580738.

It is an arithmetic number, because the mean of its divisors is an integer number (397982519600).

Almost surely, 2^{4643562013221} is an apocalyptic number.

It is an amenable number.

4643562013221 is a deficient number, since it is larger than the sum of its proper divisors (1724158300379).

4643562013221 is a wasteful number, since it uses less digits than its factorization.

4643562013221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59004828.

The product of its (nonzero) digits is 207360, while the sum is 39.

Adding to 4643562013221 its reverse (1223102653464), we get a palindrome (5866664666685).

The spelling of 4643562013221 in words is "four trillion, six hundred forty-three billion, five hundred sixty-two million, thirteen thousand, two hundred twenty-one".