27531532260657 has 12 divisors (see below), whose sum is σ = 40419699458164. Its totient is φ = 18053463777120.

The previous prime is 27531532260647. The next prime is 27531532260689. The reversal of 27531532260657 is 75606223513572.

27531532260657 is a `hidden beast` number, since 2 + 7 + 5 + 3 + 1 + 5 + 3 + 22 + 606 + 5 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2392098382881 + 25139433877776 = 1546641^2 + 5013924^2 .

It is not a de Polignac number, because 27531532260657 - 2²² = 27531528066353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27531532260647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25074254698 + ... + 25074255795.

Almost surely, 2^{27531532260657} is an apocalyptic number.

It is an amenable number.

27531532260657 is a deficient number, since it is larger than the sum of its proper divisors (12888167197507).

27531532260657 is a wasteful number, since it uses less digits than its factorization.

27531532260657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50148510560 (or 50148510557 counting only the distinct ones).

The product of its (nonzero) digits is 15876000, while the sum is 54.

The spelling of 27531532260657 in words is "twenty-seven trillion, five hundred thirty-one billion, five hundred thirty-two million, two hundred sixty thousand, six hundred fifty-seven".