85702535689 has 2 divisors, whose sum is σ = 85702535690. Its totient is φ = 85702535688.

The previous prime is 85702535609. The next prime is 85702535707. The reversal of 85702535689 is 98653520758.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80587854400 + 5114681289 = 283880^2 + 71517^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85702535689 is a prime.

It is not a weakly prime, because it can be changed into another prime (85702535609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42851267844 + 42851267845.

It is an arithmetic number, because the mean of its divisors is an integer number (42851267845).

Almost surely, 2^85702535689 is an apocalyptic number.

It is an amenable number.

85702535689 is a deficient number, since it is larger than the sum of its proper divisors (1).

85702535689 is an equidigital number, since it uses as much as digits as its factorization.

85702535689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144000, while the sum is 58.

The spelling of 85702535689 in words is "eighty-five billion, seven hundred two million, five hundred thirty-five thousand, six hundred eighty-nine".