85005318042067 has 2 divisors, whose sum is σ = 85005318042068. Its totient is φ = 85005318042066.

The previous prime is 85005318042053. The next prime is 85005318042089. The reversal of 85005318042067 is 76024081350058.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85005318042067 - 2¹⁵ = 85005318009299 is a prime.

It is a super-2 number, since 2×85005318042067² (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 85005318042067.

It is not a weakly prime, because it can be changed into another prime (85005318072067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42502659021033 + 42502659021034.

It is an arithmetic number, because the mean of its divisors is an integer number (42502659021034).

Almost surely, 2^{85005318042067} is an apocalyptic number.

85005318042067 is a deficient number, since it is larger than the sum of its proper divisors (1).

85005318042067 is an equidigital number, since it uses as much as digits as its factorization.

85005318042067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1612800, while the sum is 49.

The spelling of 85005318042067 in words is "eighty-five trillion, five billion, three hundred eighteen million, forty-two thousand, sixty-seven".