85470534997697 has 2 divisors, whose sum is σ = 85470534997698. Its totient is φ = 85470534997696.

The previous prime is 85470534997691. The next prime is 85470534997769. The reversal of 85470534997697 is 79679943507458.

Together with next prime (85470534997769) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85255601692816 + 214933304881 = 9233396^2 + 463609^2 .

It is a cyclic number.

It is not a de Polignac number, because 85470534997697 - 2³⁶ = 85401815520961 is a prime.

It is not a weakly prime, because it can be changed into another prime (85470534997691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42735267498848 + 42735267498849.

It is an arithmetic number, because the mean of its divisors is an integer number (42735267498849).

Almost surely, 2^{85470534997697} is an apocalyptic number.

It is an amenable number.

85470534997697 is a deficient number, since it is larger than the sum of its proper divisors (1).

85470534997697 is an equidigital number, since it uses as much as digits as its factorization.

85470534997697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14402707200, while the sum is 83.

The spelling of 85470534997697 in words is "eighty-five trillion, four hundred seventy billion, five hundred thirty-four million, nine hundred ninety-seven thousand, six hundred ninety-seven".