2816775065 has 8 divisors (see below), whose sum is σ = 3640140168. Its totient is φ = 2080080000.

The previous prime is 2816775053. The next prime is 2816775079. The reversal of 2816775065 is 5605776182.

It can be written as a sum of positive squares in 4 ways, for example, as 501625609 + 2315149456 = 22397^2 + 48116^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2816775065 - 2⁸ = 2816774809 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 21667436 + ... + 21667565.

It is an arithmetic number, because the mean of its divisors is an integer number (455017521).

Almost surely, 2^2816775065 is an apocalyptic number.

It is an amenable number.

2816775065 is a deficient number, since it is larger than the sum of its proper divisors (823365103).

2816775065 is a wasteful number, since it uses less digits than its factorization.

2816775065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43335019.

The product of its (nonzero) digits is 705600, while the sum is 47.

The square root of 2816775065 is about 53073.2989835755. The cubic root of 2816775065 is about 1412.2688795108.

The spelling of 2816775065 in words is "two billion, eight hundred sixteen million, seven hundred seventy-five thousand, sixty-five".