27859366809019 has 2 divisors, whose sum is σ = 27859366809020. Its totient is φ = 27859366809018.

The previous prime is 27859366808941. The next prime is 27859366809073. The reversal of 27859366809019 is 91090866395872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27859366809019 - 2⁷ = 27859366808891 is a prime.

It is a super-2 number, since 2×27859366809019² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (27859366809719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13929683404509 + 13929683404510.

It is an arithmetic number, because the mean of its divisors is an integer number (13929683404510).

Almost surely, 2^{27859366809019} is an apocalyptic number.

27859366809019 is a deficient number, since it is larger than the sum of its proper divisors (1).

27859366809019 is an equidigital number, since it uses as much as digits as its factorization.

27859366809019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 352719360, while the sum is 73.

The spelling of 27859366809019 in words is "twenty-seven trillion, eight hundred fifty-nine billion, three hundred sixty-six million, eight hundred nine thousand, nineteen".