85436562713 has 2 divisors, whose sum is σ = 85436562714. Its totient is φ = 85436562712.

The previous prime is 85436562677. The next prime is 85436562733. The reversal of 85436562713 is 31726563458.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79384189504 + 6052373209 = 281752^2 + 77797^2 .

It is a cyclic number.

It is not a de Polignac number, because 85436562713 - 2¹⁴ = 85436546329 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (85436562733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42718281356 + 42718281357.

It is an arithmetic number, because the mean of its divisors is an integer number (42718281357).

Almost surely, 2^85436562713 is an apocalyptic number.

It is an amenable number.

85436562713 is a deficient number, since it is larger than the sum of its proper divisors (1).

85436562713 is an equidigital number, since it uses as much as digits as its factorization.

85436562713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3628800, while the sum is 50.

The spelling of 85436562713 in words is "eighty-five billion, four hundred thirty-six million, five hundred sixty-two thousand, seven hundred thirteen".