85886222077 has 2 divisors, whose sum is σ = 85886222078. Its totient is φ = 85886222076.

The previous prime is 85886222047. The next prime is 85886222117. The reversal of 85886222077 is 77022268858.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69851318436 + 16034903641 = 264294^2 + 126629^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85886222077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85886222047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42943111038 + 42943111039.

It is an arithmetic number, because the mean of its divisors is an integer number (42943111039).

Almost surely, 2^85886222077 is an apocalyptic number.

It is an amenable number.

85886222077 is a deficient number, since it is larger than the sum of its proper divisors (1).

85886222077 is an equidigital number, since it uses as much as digits as its factorization.

85886222077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6021120, while the sum is 55.

The spelling of 85886222077 in words is "eighty-five billion, eight hundred eighty-six million, two hundred twenty-two thousand, seventy-seven".