4849564861 has 2 divisors, whose sum is σ = 4849564862. Its totient is φ = 4849564860.

The previous prime is 4849564799. The next prime is 4849564873. The reversal of 4849564861 is 1684659484.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3894384025 + 955180836 = 62405^2 + 30906^2 .

It is a cyclic number.

It is not a de Polignac number, because 4849564861 - 2¹¹ = 4849562813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4849564261) 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, 2424782430 + 2424782431.

It is an arithmetic number, because the mean of its divisors is an integer number (2424782431).

Almost surely, 2^4849564861 is an apocalyptic number.

It is an amenable number.

4849564861 is a deficient number, since it is larger than the sum of its proper divisors (1).

4849564861 is an equidigital number, since it uses as much as digits as its factorization.

4849564861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6635520, while the sum is 55.

The square root of 4849564861 is about 69638.8171998922. The cubic root of 4849564861 is about 1692.6516571243.

The spelling of 4849564861 in words is "four billion, eight hundred forty-nine million, five hundred sixty-four thousand, eight hundred sixty-one".