85194547199 has 2 divisors, whose sum is σ = 85194547200. Its totient is φ = 85194547198.

The previous prime is 85194547171. The next prime is 85194547219. The reversal of 85194547199 is 99174549158.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85194547199 - 2²⁰ = 85193498623 is a prime.

It is a super-2 number, since 2×85194547199² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85194547499) 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, 42597273599 + 42597273600.

It is an arithmetic number, because the mean of its divisors is an integer number (42597273600).

Almost surely, 2^85194547199 is an apocalyptic number.

85194547199 is a deficient number, since it is larger than the sum of its proper divisors (1).

85194547199 is an equidigital number, since it uses as much as digits as its factorization.

85194547199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16329600, while the sum is 62.

The spelling of 85194547199 in words is "eighty-five billion, one hundred ninety-four million, five hundred forty-seven thousand, one hundred ninety-nine".