27859366809073 has 2 divisors, whose sum is σ = 27859366809074. Its totient is φ = 27859366809072.

The previous prime is 27859366809019. The next prime is 27859366809097. The reversal of 27859366809073 is 37090866395872.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19248997967424 + 8610368841649 = 4387368^2 + 2934343^2 .

It is a cyclic number.

It is not a de Polignac number, because 27859366809073 - 2⁹ = 27859366808561 is a prime.

It is a super-2 number, since 2×27859366809073² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27859366808987 and 27859366809005.

It is not a weakly prime, because it can be changed into another prime (27859366809773) 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, 13929683404536 + 13929683404537.

It is an arithmetic number, because the mean of its divisors is an integer number (13929683404537).

Almost surely, 2^{27859366809073} is an apocalyptic number.

It is an amenable number.

27859366809073 is a deficient number, since it is larger than the sum of its proper divisors (1).

27859366809073 is an equidigital number, since it uses as much as digits as its factorization.

27859366809073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 823011840, while the sum is 73.

The spelling of 27859366809073 in words is "twenty-seven trillion, eight hundred fifty-nine billion, three hundred sixty-six million, eight hundred nine thousand, seventy-three".