27755550529988 has 12 divisors (see below), whose sum is σ = 49884975952812. Its totient is φ = 13502700257760.

The previous prime is 27755550529981. The next prime is 27755550530009. The reversal of 27755550529988 is 88992505555772.

It can be written as a sum of positive squares in 2 ways, for example, as 17293637907844 + 10461912622144 = 4158562^2 + 3234488^2 .

It is not an unprimeable number, because it can be changed into a prime (27755550529981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93768751643 + ... + 93768751938.

It is an arithmetic number, because the mean of its divisors is an integer number (4157081329401).

Almost surely, 2^{27755550529988} is an apocalyptic number.

It is an amenable number.

27755550529988 is a deficient number, since it is larger than the sum of its proper divisors (22129425422824).

27755550529988 is a wasteful number, since it uses less digits than its factorization.

27755550529988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187537503622 (or 187537503620 counting only the distinct ones).

The product of its (nonzero) digits is 3175200000, while the sum is 77.

The spelling of 27755550529988 in words is "twenty-seven trillion, seven hundred fifty-five billion, five hundred fifty million, five hundred twenty-nine thousand, nine hundred eighty-eight".