2764791805 has 4 divisors (see below), whose sum is σ = 3317750172. Its totient is φ = 2211833440.

The previous prime is 2764791791. The next prime is 2764791829. The reversal of 2764791805 is 5081974672.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2206556676 + 558235129 = 46974^2 + 23627^2 .

It is not a de Polignac number, because 2764791805 - 2⁵ = 2764791773 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276479176 + ... + 276479185.

It is an arithmetic number, because the mean of its divisors is an integer number (829437543).

Almost surely, 2^2764791805 is an apocalyptic number.

It is an amenable number.

2764791805 is a deficient number, since it is larger than the sum of its proper divisors (552958367).

2764791805 is an equidigital number, since it uses as much as digits as its factorization.

2764791805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552958366.

The product of its (nonzero) digits is 846720, while the sum is 49.

The square root of 2764791805 is about 52581.2875935917. The cubic root of 2764791805 is about 1403.5271276322.

The spelling of 2764791805 in words is "two billion, seven hundred sixty-four million, seven hundred ninety-one thousand, eight hundred five".