27747657232 has 10 divisors (see below), whose sum is σ = 53761085918. Its totient is φ = 13873828608.

The previous prime is 27747657229. The next prime is 27747657233. The reversal of 27747657232 is 23275674772.

It can be written as a sum of positive squares in only one way, i.e., 19662770176 + 8084887056 = 140224^2 + 89916^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 27747657232.

It is not an unprimeable number, because it can be changed into a prime (27747657233) 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 as a sum of consecutive naturals, namely, 867114273 + ... + 867114304.

Almost surely, 2^27747657232 is an apocalyptic number.

It is an amenable number.

27747657232 is a deficient number, since it is larger than the sum of its proper divisors (26013428686).

27747657232 is a wasteful number, since it uses less digits than its factorization.

27747657232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734228585 (or 1734228579 counting only the distinct ones).

The product of its digits is 6914880, while the sum is 52.

The spelling of 27747657232 in words is "twenty-seven billion, seven hundred forty-seven million, six hundred fifty-seven thousand, two hundred thirty-two".