2856000863 has 4 divisors (see below), whose sum is σ = 2874914928. Its totient is φ = 2837086800.

The previous prime is 2856000857. The next prime is 2856000869. The reversal of 2856000863 is 3680006582.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2856000857) and next prime (2856000869).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2856000863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2856000869) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 9456806 + ... + 9457107.

It is an arithmetic number, because the mean of its divisors is an integer number (718728732).

Almost surely, 2^2856000863 is an apocalyptic number.

2856000863 is a deficient number, since it is larger than the sum of its proper divisors (18914065).

2856000863 is a wasteful number, since it uses less digits than its factorization.

2856000863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18914064.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 2856000863 is about 53441.5649377898. The cubic root of 2856000863 is about 1418.7943318562.

The spelling of 2856000863 in words is "two billion, eight hundred fifty-six million, eight hundred sixty-three", and thus it is an aban number.