27745852728 has 96 divisors (see below), whose sum is σ = 80728840080. Its totient is φ = 7913241600.

The previous prime is 27745852721. The next prime is 27745852751. The reversal of 27745852728 is 82725854772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27745852721) 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 23 ways as a sum of consecutive naturals, for example, 231643 + ... + 330378.

Almost surely, 2^27745852728 is an apocalyptic number.

It is an amenable number.

27745852728 is an abundant number, since it is smaller than the sum of its proper divisors (52982987352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27745852728 is a wasteful number, since it uses less digits than its factorization.

27745852728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562069 (or 562054 counting only the distinct ones).

The product of its digits is 17561600, while the sum is 57.

The spelling of 27745852728 in words is "twenty-seven billion, seven hundred forty-five million, eight hundred fifty-two thousand, seven hundred twenty-eight".