27088380521 has 2 divisors, whose sum is σ = 27088380522. Its totient is φ = 27088380520.

The previous prime is 27088380509. The next prime is 27088380559. The reversal of 27088380521 is 12508388072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27047420521 + 40960000 = 164461^2 + 6400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27088380521 is a prime.

It is not a weakly prime, because it can be changed into another prime (27088385521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13544190260 + 13544190261.

It is an arithmetic number, because the mean of its divisors is an integer number (13544190261).

Almost surely, 2^27088380521 is an apocalyptic number.

It is an amenable number.

27088380521 is a deficient number, since it is larger than the sum of its proper divisors (1).

27088380521 is an equidigital number, since it uses as much as digits as its factorization.

27088380521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 215040, while the sum is 44.

The spelling of 27088380521 in words is "twenty-seven billion, eighty-eight million, three hundred eighty thousand, five hundred twenty-one".