27764456656 has 10 divisors (see below), whose sum is σ = 53793634802. Its totient is φ = 13882228320.

The previous prime is 27764456611. The next prime is 27764456659. The reversal of 27764456656 is 65665446772.

It can be written as a sum of positive squares in only one way, i.e., 22655066256 + 5109390400 = 150516^2 + 71480^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 27764456656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27764456659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 867639255 + ... + 867639286.

Almost surely, 2^27764456656 is an apocalyptic number.

It is an amenable number.

27764456656 is a deficient number, since it is larger than the sum of its proper divisors (26029178146).

27764456656 is a wasteful number, since it uses less digits than its factorization.

27764456656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1735278549 (or 1735278543 counting only the distinct ones).

The product of its digits is 50803200, while the sum is 58.

The spelling of 27764456656 in words is "twenty-seven billion, seven hundred sixty-four million, four hundred fifty-six thousand, six hundred fifty-six".