4641818641 has 2 divisors, whose sum is σ = 4641818642. Its totient is φ = 4641818640.

The previous prime is 4641818639. The next prime is 4641818659. The reversal of 4641818641 is 1468181464.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3297056400 + 1344762241 = 57420^2 + 36671^2 .

It is a cyclic number.

It is not a de Polignac number, because 4641818641 - 2¹ = 4641818639 is a prime.

Together with 4641818639, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4641818611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2320909320 + 2320909321.

It is an arithmetic number, because the mean of its divisors is an integer number (2320909321).

Almost surely, 2^4641818641 is an apocalyptic number.

It is an amenable number.

4641818641 is a deficient number, since it is larger than the sum of its proper divisors (1).

4641818641 is an equidigital number, since it uses as much as digits as its factorization.

4641818641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 147456, while the sum is 43.

The square root of 4641818641 is about 68130.8934404944. The cubic root of 4641818641 is about 1668.1280662433.

The spelling of 4641818641 in words is "four billion, six hundred forty-one million, eight hundred eighteen thousand, six hundred forty-one".