2875921445 has 18 divisors (see below), whose sum is σ = 3578540082. Its totient is φ = 2218715296.

The previous prime is 2875921441. The next prime is 2875921463. The reversal of 2875921445 is 5441295782.

It can be written as a sum of positive squares in 3 ways, for example, as 331021636 + 2544899809 = 18194^2 + 50447^2 .

It is not a de Polignac number, because 2875921445 - 2² = 2875921441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2875921445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2875921441) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3477122 + ... + 3477948.

Almost surely, 2^2875921445 is an apocalyptic number.

It is an amenable number.

2875921445 is a deficient number, since it is larger than the sum of its proper divisors (702618637).

2875921445 is an frugal number, since it uses more digits than its factorization.

2875921445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717 (or 861 counting only the distinct ones).

The product of its digits is 806400, while the sum is 47.

The square root of 2875921445 is about 53627.6183043775. The cubic root of 2875921445 is about 1422.0853848303.

The spelling of 2875921445 in words is "two billion, eight hundred seventy-five million, nine hundred twenty-one thousand, four hundred forty-five".