4456218461 has 2 divisors, whose sum is σ = 4456218462. Its totient is φ = 4456218460.

The previous prime is 4456218443. The next prime is 4456218499. The reversal of 4456218461 is 1648126544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4449690436 + 6528025 = 66706^2 + 2555^2 .

It is a cyclic number.

It is not a de Polignac number, because 4456218461 - 2⁶ = 4456218397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4456218961) 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 as a sum of consecutive naturals, namely, 2228109230 + 2228109231.

It is an arithmetic number, because the mean of its divisors is an integer number (2228109231).

Almost surely, 2^4456218461 is an apocalyptic number.

It is an amenable number.

4456218461 is a deficient number, since it is larger than the sum of its proper divisors (1).

4456218461 is an equidigital number, since it uses as much as digits as its factorization.

4456218461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 184320, while the sum is 41.

The square root of 4456218461 is about 66754.9133847090. The cubic root of 4456218461 is about 1645.5919637924.

The spelling of 4456218461 in words is "four billion, four hundred fifty-six million, two hundred eighteen thousand, four hundred sixty-one".