85142243713 has 2 divisors, whose sum is σ = 85142243714. Its totient is φ = 85142243712.

The previous prime is 85142243587. The next prime is 85142243779. The reversal of 85142243713 is 31734224158.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70488657009 + 14653586704 = 265497^2 + 121052^2 .

It is a cyclic number.

It is not a de Polignac number, because 85142243713 - 2¹⁷ = 85142112641 is a prime.

It is not a weakly prime, because it can be changed into another prime (85142246713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42571121856 + 42571121857.

It is an arithmetic number, because the mean of its divisors is an integer number (42571121857).

Almost surely, 2^85142243713 is an apocalyptic number.

It is an amenable number.

85142243713 is a deficient number, since it is larger than the sum of its proper divisors (1).

85142243713 is an equidigital number, since it uses as much as digits as its factorization.

85142243713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 40.

The spelling of 85142243713 in words is "eighty-five billion, one hundred forty-two million, two hundred forty-three thousand, seven hundred thirteen".