27767556496 has 15 divisors (see below), whose sum is σ = 53800932171. Its totient is φ = 13883444976.

The previous prime is 27767556433. The next prime is 27767556497. The reversal of 27767556496 is 69465576772.

The square root of 27767556496 is 166636.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27767556497) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 645715 + ... + 687373.

Almost surely, 2^27767556496 is an apocalyptic number.

27767556496 is the 166636-th square number.

It is an amenable number.

27767556496 is a deficient number, since it is larger than the sum of its proper divisors (26033375675).

27767556496 is an frugal number, since it uses more digits than its factorization.

27767556496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83326 (or 41661 counting only the distinct ones).

The product of its digits is 133358400, while the sum is 64.

Multiplying 27767556496 by its sum of digits (64), we get a square (1777123615744 = 1333088²).

The spelling of 27767556496 in words is "twenty-seven billion, seven hundred sixty-seven million, five hundred fifty-six thousand, four hundred ninety-six".