805042630865 has 16 divisors (see below), whose sum is σ = 1054028042496. Its totient is φ = 585399964800.

The previous prime is 805042630829. The next prime is 805042630883. The reversal of 805042630865 is 568036240508.

805042630865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 805042630865 - 2¹⁶ = 805042565329 is a prime.

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, 688916 + ... + 1443845.

It is an arithmetic number, because the mean of its divisors is an integer number (65876752656).

Almost surely, 2^805042630865 is an apocalyptic number.

It is an amenable number.

805042630865 is a deficient number, since it is larger than the sum of its proper divisors (248985411631).

805042630865 is a wasteful number, since it uses less digits than its factorization.

805042630865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2139640.

The product of its (nonzero) digits is 1382400, while the sum is 47.

The spelling of 805042630865 in words is "eight hundred five billion, forty-two million, six hundred thirty thousand, eight hundred sixty-five".