85807410509971 has 2 divisors, whose sum is σ = 85807410509972. Its totient is φ = 85807410509970.

The previous prime is 85807410509969. The next prime is 85807410510023. The reversal of 85807410509971 is 17990501470858.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85807410509971 - 2¹ = 85807410509969 is a prime.

Together with 85807410509969, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (85807410509911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42903705254985 + 42903705254986.

It is an arithmetic number, because the mean of its divisors is an integer number (42903705254986).

Almost surely, 2^{85807410509971} is an apocalyptic number.

85807410509971 is a deficient number, since it is larger than the sum of its proper divisors (1).

85807410509971 is an equidigital number, since it uses as much as digits as its factorization.

85807410509971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25401600, while the sum is 64.

The spelling of 85807410509971 in words is "eighty-five trillion, eight hundred seven billion, four hundred ten million, five hundred nine thousand, nine hundred seventy-one".