2820402875 has 16 divisors (see below), whose sum is σ = 3525064608. Its totient is φ = 2252988000.

The previous prime is 2820402869. The next prime is 2820402887. The reversal of 2820402875 is 5782040282.

It is a happy number.

It is not a de Polignac number, because 2820402875 - 2⁸ = 2820402619 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 (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70049 + ... + 102701.

It is an arithmetic number, because the mean of its divisors is an integer number (220316538).

Almost surely, 2^2820402875 is an apocalyptic number.

2820402875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2820402875 is a deficient number, since it is larger than the sum of its proper divisors (704661733).

2820402875 is an equidigital number, since it uses as much as digits as its factorization.

2820402875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33359 (or 33349 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 38.

The square root of 2820402875 is about 53107.4653415130. The cubic root of 2820402875 is about 1412.8749207071.

The spelling of 2820402875 in words is "two billion, eight hundred twenty million, four hundred two thousand, eight hundred seventy-five".