2857873865 has 16 divisors (see below), whose sum is σ = 4275676800. Its totient is φ = 1781531520.

The previous prime is 2857873831. The next prime is 2857873871. The reversal of 2857873865 is 5683787582.

It is not a de Polignac number, because 2857873865 - 2¹⁰ = 2857872841 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 3711140 + ... + 3711909.

It is an arithmetic number, because the mean of its divisors is an integer number (267229800).

Almost surely, 2^2857873865 is an apocalyptic number.

It is an amenable number.

2857873865 is a deficient number, since it is larger than the sum of its proper divisors (1417802935).

2857873865 is a wasteful number, since it uses less digits than its factorization.

2857873865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7423072.

The product of its digits is 22579200, while the sum is 59.

The square root of 2857873865 is about 53459.0858975348. The cubic root of 2857873865 is about 1419.1044185871.

The spelling of 2857873865 in words is "two billion, eight hundred fifty-seven million, eight hundred seventy-three thousand, eight hundred sixty-five".