2811379664 has 40 divisors (see below), whose sum is σ = 5509022400. Its totient is φ = 1389788928.

The previous prime is 2811379663. The next prime is 2811379679. The reversal of 2811379664 is 4669731182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2811379663) 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 7 ways as a sum of consecutive naturals, for example, 516284 + ... + 521700.

It is an arithmetic number, because the mean of its divisors is an integer number (137725560).

Almost surely, 2^2811379664 is an apocalyptic number.

It is an amenable number.

2811379664 is a deficient number, since it is larger than the sum of its proper divisors (2697642736).

2811379664 is a wasteful number, since it uses less digits than its factorization.

2811379664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5787 (or 5781 counting only the distinct ones).

The product of its digits is 435456, while the sum is 47.

The square root of 2811379664 is about 53022.4449077935. Note that the first 3 decimals coincide. The cubic root of 2811379664 is about 1411.3665914889.

The spelling of 2811379664 in words is "two billion, eight hundred eleven million, three hundred seventy-nine thousand, six hundred sixty-four".