4641876221 has 2 divisors, whose sum is σ = 4641876222. Its totient is φ = 4641876220.

The previous prime is 4641876209. The next prime is 4641876229. The reversal of 4641876221 is 1226781464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4554360196 + 87516025 = 67486^2 + 9355^2 .

It is a cyclic number.

It is not a de Polignac number, because 4641876221 - 2¹⁰ = 4641875197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4641876229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2320938110 + 2320938111.

It is an arithmetic number, because the mean of its divisors is an integer number (2320938111).

Almost surely, 2^4641876221 is an apocalyptic number.

It is an amenable number.

4641876221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4641876221 is an equidigital number, since it uses as much as digits as its factorization.

4641876221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 41.

The square root of 4641876221 is about 68131.3160081324. The cubic root of 4641876221 is about 1668.1349637135.

The spelling of 4641876221 in words is "four billion, six hundred forty-one million, eight hundred seventy-six thousand, two hundred twenty-one".