85811466242063 has 2 divisors, whose sum is σ = 85811466242064. Its totient is φ = 85811466242062.

The previous prime is 85811466242027. The next prime is 85811466242081. The reversal of 85811466242063 is 36024266411858.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85811466242063 - 2¹⁴ = 85811466225679 is a prime.

It is a super-2 number, since 2×85811466242063² (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 (85811466242093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42905733121031 + 42905733121032.

It is an arithmetic number, because the mean of its divisors is an integer number (42905733121032).

Almost surely, 2^{85811466242063} is an apocalyptic number.

85811466242063 is a deficient number, since it is larger than the sum of its proper divisors (1).

85811466242063 is an equidigital number, since it uses as much as digits as its factorization.

85811466242063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13271040, while the sum is 56.

The spelling of 85811466242063 in words is "eighty-five trillion, eight hundred eleven billion, four hundred sixty-six million, two hundred forty-two thousand, sixty-three".