85005318058393 has 4 divisors (see below), whose sum is σ = 85005715536180. Its totient is φ = 85004920580608.

The previous prime is 85005318058391. The next prime is 85005318058417. The reversal of 85005318058393 is 39385081350058.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53652519244944 + 31352798813449 = 7324788^2 + 5599357^2 .

It is a cyclic number.

It is not a de Polignac number, because 85005318058393 - 2¹ = 85005318058391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85005318058391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198417928 + ... + 198845881.

It is an arithmetic number, because the mean of its divisors is an integer number (21251428884045).

Almost surely, 2^{85005318058393} is an apocalyptic number.

It is an amenable number.

85005318058393 is a deficient number, since it is larger than the sum of its proper divisors (397477787).

85005318058393 is a wasteful number, since it uses less digits than its factorization.

85005318058393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397477786.

The product of its (nonzero) digits is 15552000, while the sum is 58.

The spelling of 85005318058393 in words is "eighty-five trillion, five billion, three hundred eighteen million, fifty-eight thousand, three hundred ninety-three".