4856541817 has 2 divisors, whose sum is σ = 4856541818. Its totient is φ = 4856541816.

The previous prime is 4856541751. The next prime is 4856541829. The reversal of 4856541817 is 7181456584.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3246606441 + 1609935376 = 56979^2 + 40124^2 .

It is a cyclic number.

It is not a de Polignac number, because 4856541817 - 2⁷ = 4856541689 is a prime.

It is a super-2 number, since 2×4856541817² = 47171996840539322978, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4856541847) 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, 2428270908 + 2428270909.

It is an arithmetic number, because the mean of its divisors is an integer number (2428270909).

Almost surely, 2^4856541817 is an apocalyptic number.

It is an amenable number.

4856541817 is a deficient number, since it is larger than the sum of its proper divisors (1).

4856541817 is an equidigital number, since it uses as much as digits as its factorization.

4856541817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1075200, while the sum is 49.

The square root of 4856541817 is about 69688.8930676905. The cubic root of 4856541817 is about 1693.4629943348.

The spelling of 4856541817 in words is "four billion, eight hundred fifty-six million, five hundred forty-one thousand, eight hundred seventeen".