2864805805 has 16 divisors (see below), whose sum is σ = 3522435840. Its totient is φ = 2235719232.

The previous prime is 2864805793. The next prime is 2864805841. The reversal of 2864805805 is 5085084682.

It is a cyclic number.

It is not a de Polignac number, because 2864805805 - 2¹¹ = 2864803757 is a prime.

It is a super-2 number, since 2×2864805805² = 16414224600723396050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52291 + ... + 91999.

It is an arithmetic number, because the mean of its divisors is an integer number (220152240).

Almost surely, 2^2864805805 is an apocalyptic number.

It is an amenable number.

2864805805 is a deficient number, since it is larger than the sum of its proper divisors (657630035).

2864805805 is a wasteful number, since it uses less digits than its factorization.

2864805805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40068.

The product of its (nonzero) digits is 614400, while the sum is 46.

The square root of 2864805805 is about 53523.8806982453. The cubic root of 2864805805 is about 1420.2508657156.

The spelling of 2864805805 in words is "two billion, eight hundred sixty-four million, eight hundred five thousand, eight hundred five".