2809106764 has 12 divisors (see below), whose sum is σ = 4985175888. Its totient is φ = 1384770800.

The previous prime is 2809106749. The next prime is 2809106767. The reversal of 2809106764 is 4676019082.

It is a self number, because there is not a number n which added to its sum of digits gives 2809106764.

It is not an unprimeable number, because it can be changed into a prime (2809106767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4945327 + ... + 4945894.

It is an arithmetic number, because the mean of its divisors is an integer number (415431324).

Almost surely, 2^2809106764 is an apocalyptic number.

It is an amenable number.

2809106764 is a deficient number, since it is larger than the sum of its proper divisors (2176069124).

2809106764 is a wasteful number, since it uses less digits than its factorization.

2809106764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9891296 (or 9891294 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 2809106764 is about 53001.0071979769. The cubic root of 2809106764 is about 1410.9861424582.

The spelling of 2809106764 in words is "two billion, eight hundred nine million, one hundred six thousand, seven hundred sixty-four".