85004273128543 has 2 divisors, whose sum is σ = 85004273128544. Its totient is φ = 85004273128542.

The previous prime is 85004273128469. The next prime is 85004273128679. The reversal of 85004273128543 is 34582137240058.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85004273128543 - 2³³ = 84995683193951 is a prime.

It is a super-2 number, since 2×85004273128543² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85004273123543) 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, 42502136564271 + 42502136564272.

It is an arithmetic number, because the mean of its divisors is an integer number (42502136564272).

Almost surely, 2^{85004273128543} is an apocalyptic number.

85004273128543 is a deficient number, since it is larger than the sum of its proper divisors (1).

85004273128543 is an equidigital number, since it uses as much as digits as its factorization.

85004273128543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6451200, while the sum is 52.

The spelling of 85004273128543 in words is "eighty-five trillion, four billion, two hundred seventy-three million, one hundred twenty-eight thousand, five hundred forty-three".