2820995205 has 32 divisors (see below), whose sum is σ = 5170120704. Its totient is φ = 1286665536.

The previous prime is 2820995183. The next prime is 2820995231. The reversal of 2820995205 is 5025990282.

It is not a de Polignac number, because 2820995205 - 2⁵ = 2820995173 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16192 + ... + 76838.

It is an arithmetic number, because the mean of its divisors is an integer number (161566272).

Almost surely, 2^2820995205 is an apocalyptic number.

It is an amenable number.

2820995205 is a deficient number, since it is larger than the sum of its proper divisors (2349125499).

2820995205 is a wasteful number, since it uses less digits than its factorization.

2820995205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61105.

The product of its (nonzero) digits is 129600, while the sum is 42.

The square root of 2820995205 is about 53113.0417600047. The cubic root of 2820995205 is about 1412.9738226086.

The spelling of 2820995205 in words is "two billion, eight hundred twenty million, nine hundred ninety-five thousand, two hundred five".