85663738706053 has 2 divisors, whose sum is σ = 85663738706054. Its totient is φ = 85663738706052.

The previous prime is 85663738706047. The next prime is 85663738706123. The reversal of 85663738706053 is 35060783736658.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61573870997604 + 24089867708449 = 7846902^2 + 4908143^2 .

It is a cyclic number.

It is not a de Polignac number, because 85663738706053 - 2⁴⁵ = 50479366617221 is a prime.

It is a super-2 number, since 2×85663738706053² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 85663738706053.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85663738706003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42831869353026 + 42831869353027.

It is an arithmetic number, because the mean of its divisors is an integer number (42831869353027).

Almost surely, 2^{85663738706053} is an apocalyptic number.

It is an amenable number.

85663738706053 is a deficient number, since it is larger than the sum of its proper divisors (1).

85663738706053 is an equidigital number, since it uses as much as digits as its factorization.

85663738706053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 457228800, while the sum is 67.

The spelling of 85663738706053 in words is "eighty-five trillion, six hundred sixty-three billion, seven hundred thirty-eight million, seven hundred six thousand, fifty-three".