2765059805 has 16 divisors (see below), whose sum is σ = 3333317184. Its totient is φ = 2201907840.

The previous prime is 2765059777. The next prime is 2765059853. The reversal of 2765059805 is 5089505672.

It is a de Polignac number, because none of the positive numbers 2^k-2765059805 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2765059805.

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, 1814774 + ... + 1816296.

It is an arithmetic number, because the mean of its divisors is an integer number (208332324).

Almost surely, 2^2765059805 is an apocalyptic number.

It is an amenable number.

2765059805 is a deficient number, since it is larger than the sum of its proper divisors (568257379).

2765059805 is a wasteful number, since it uses less digits than its factorization.

2765059805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2956.

The product of its (nonzero) digits is 756000, while the sum is 47.

The square root of 2765059805 is about 52583.8359669585. The cubic root of 2765059805 is about 1403.5724756057.

The spelling of 2765059805 in words is "two billion, seven hundred sixty-five million, fifty-nine thousand, eight hundred five".