2808472081 has 2 divisors, whose sum is σ = 2808472082. Its totient is φ = 2808472080.

The previous prime is 2808472033. The next prime is 2808472111. The reversal of 2808472081 is 1802748082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2441941056 + 366531025 = 49416^2 + 19145^2 .

It is a cyclic number.

It is not a de Polignac number, because 2808472081 - 2²⁷ = 2674254353 is a prime.

It is a super-2 number, since 2×2808472081² = 15775030859512941122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2808470081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1404236040 + 1404236041.

It is an arithmetic number, because the mean of its divisors is an integer number (1404236041).

Almost surely, 2^2808472081 is an apocalyptic number.

It is an amenable number.

2808472081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2808472081 is an equidigital number, since it uses as much as digits as its factorization.

2808472081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57344, while the sum is 40.

The square root of 2808472081 is about 52995.0193980529. The cubic root of 2808472081 is about 1410.8798694865.

The spelling of 2808472081 in words is "two billion, eight hundred eight million, four hundred seventy-two thousand, eighty-one".