4845690809 has 2 divisors, whose sum is σ = 4845690810. Its totient is φ = 4845690808.

The previous prime is 4845690799. The next prime is 4845690851. The reversal of 4845690809 is 9080965484.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4234365184 + 611325625 = 65072^2 + 24725^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4845690809 is a prime.

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 (4845696809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2422845404 + 2422845405.

It is an arithmetic number, because the mean of its divisors is an integer number (2422845405).

Almost surely, 2^4845690809 is an apocalyptic number.

It is an amenable number.

4845690809 is a deficient number, since it is larger than the sum of its proper divisors (1).

4845690809 is an equidigital number, since it uses as much as digits as its factorization.

4845690809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2488320, while the sum is 53.

The square root of 4845690809 is about 69610.9963224202. The cubic root of 4845690809 is about 1692.2008147895.

The spelling of 4845690809 in words is "four billion, eight hundred forty-five million, six hundred ninety thousand, eight hundred nine".