2805765086 has 8 divisors (see below), whose sum is σ = 4209340080. Its totient is φ = 1402651728.

The previous prime is 2805765073. The next prime is 2805765121. The reversal of 2805765086 is 6805675082.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2805765086.

It is a congruent number.

It is an unprimeable number.

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, 99791 + ... + 124778.

It is an arithmetic number, because the mean of its divisors is an integer number (526167510).

Almost surely, 2^2805765086 is an apocalyptic number.

2805765086 is a deficient number, since it is larger than the sum of its proper divisors (1403574994).

2805765086 is a wasteful number, since it uses less digits than its factorization.

2805765086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230818.

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

The square root of 2805765086 is about 52969.4731519958. The cubic root of 2805765086 is about 1410.4264233443.

The spelling of 2805765086 in words is "two billion, eight hundred five million, seven hundred sixty-five thousand, eighty-six".