85865065078927 has 2 divisors, whose sum is σ = 85865065078928. Its totient is φ = 85865065078926.

The previous prime is 85865065078913. The next prime is 85865065078939. The reversal of 85865065078927 is 72987056056858.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85865065078927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85865065078967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42932532539463 + 42932532539464.

It is an arithmetic number, because the mean of its divisors is an integer number (42932532539464).

Almost surely, 2^{85865065078927} is an apocalyptic number.

85865065078927 is a deficient number, since it is larger than the sum of its proper divisors (1).

85865065078927 is an equidigital number, since it uses as much as digits as its factorization.

85865065078927 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2032128000, while the sum is 76.

The spelling of 85865065078927 in words is "eighty-five trillion, eight hundred sixty-five billion, sixty-five million, seventy-eight thousand, nine hundred twenty-seven".