27570902064689 has 2 divisors, whose sum is σ = 27570902064690. Its totient is φ = 27570902064688.

The previous prime is 27570902064617. The next prime is 27570902064743. The reversal of 27570902064689 is 98646020907572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21613275384064 + 5957626680625 = 4649008^2 + 2440825^2 .

It is a cyclic number.

It is not a de Polignac number, because 27570902064689 - 2³⁶ = 27502182587953 is a prime.

It is not a weakly prime, because it can be changed into another prime (27570902064289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13785451032344 + 13785451032345.

It is an arithmetic number, because the mean of its divisors is an integer number (13785451032345).

Almost surely, 2^{27570902064689} is an apocalyptic number.

It is an amenable number.

27570902064689 is a deficient number, since it is larger than the sum of its proper divisors (1).

27570902064689 is an equidigital number, since it uses as much as digits as its factorization.

27570902064689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91445760, while the sum is 65.

The spelling of 27570902064689 in words is "twenty-seven trillion, five hundred seventy billion, nine hundred two million, sixty-four thousand, six hundred eighty-nine".