4668631060021 has 2 divisors, whose sum is σ = 4668631060022. Its totient is φ = 4668631060020.

The previous prime is 4668631059889. The next prime is 4668631060031. The reversal of 4668631060021 is 1200601368664.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4476821222500 + 191809837521 = 2115850^2 + 437961^2 .

It is a cyclic number.

It is not a de Polignac number, because 4668631060021 - 2⁹ = 4668631059509 is a prime.

It is a super-2 number, since 2×4668631060021² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4668631060021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4668631060031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2334315530010 + 2334315530011.

It is an arithmetic number, because the mean of its divisors is an integer number (2334315530011).

Almost surely, 2^{4668631060021} is an apocalyptic number.

It is an amenable number.

4668631060021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4668631060021 is an equidigital number, since it uses as much as digits as its factorization.

4668631060021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 43.

The spelling of 4668631060021 in words is "four trillion, six hundred sixty-eight billion, six hundred thirty-one million, sixty thousand, twenty-one".