2773664456 has 16 divisors (see below), whose sum is σ = 5221344240. Its totient is φ = 1381306000.

The previous prime is 2773664447. The next prime is 2773664471. The reversal of 2773664456 is 6544663772.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 688646 + ... + 692661.

It is an arithmetic number, because the mean of its divisors is an integer number (326334015).

Almost surely, 2^2773664456 is an apocalyptic number.

It is an amenable number.

2773664456 is a deficient number, since it is larger than the sum of its proper divisors (2447679784).

2773664456 is a wasteful number, since it uses less digits than its factorization.

2773664456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381564 (or 1381560 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 50.

The square root of 2773664456 is about 52665.5908160157. The cubic root of 2773664456 is about 1405.0269040748.

The spelling of 2773664456 in words is "two billion, seven hundred seventy-three million, six hundred sixty-four thousand, four hundred fifty-six".