4218261473 has 2 divisors, whose sum is σ = 4218261474. Its totient is φ = 4218261472.

The previous prime is 4218261457. The next prime is 4218261499. The reversal of 4218261473 is 3741628124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4218242704 + 18769 = 64948^2 + 137^2 .

It is a cyclic number.

It is not a de Polignac number, because 4218261473 - 2⁴ = 4218261457 is a prime.

It is a super-2 number, since 2×4218261473² = 35587459709192259458, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4218261413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2109130736 + 2109130737.

It is an arithmetic number, because the mean of its divisors is an integer number (2109130737).

Almost surely, 2^4218261473 is an apocalyptic number.

It is an amenable number.

4218261473 is a deficient number, since it is larger than the sum of its proper divisors (1).

4218261473 is an equidigital number, since it uses as much as digits as its factorization.

4218261473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64512, while the sum is 38.

The square root of 4218261473 is about 64948.1444923564. The cubic root of 4218261473 is about 1615.7636447746.

Adding to 4218261473 its reverse (3741628124), we get a palindrome (7959889597).

The spelling of 4218261473 in words is "four billion, two hundred eighteen million, two hundred sixty-one thousand, four hundred seventy-three".