805386601516319 has 16 divisors (see below), whose sum is σ = 831151017645600. Its totient is φ = 779841613522944.

The previous prime is 805386601516223. The next prime is 805386601516327. The reversal of 805386601516319 is 913615106683508.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-805386601516319 is a prime.

It is a super-2 number, since 2×805386601516319² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805386601516369) 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 in 15 ways as a sum of consecutive naturals, for example, 56428754 + ... + 69245775.

It is an arithmetic number, because the mean of its divisors is an integer number (51946938602850).

Almost surely, 2^{805386601516319} is an apocalyptic number.

805386601516319 is a deficient number, since it is larger than the sum of its proper divisors (25764416129281).

805386601516319 is a wasteful number, since it uses less digits than its factorization.

805386601516319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125675402.

The product of its (nonzero) digits is 27993600, while the sum is 62.

The spelling of 805386601516319 in words is "eight hundred five trillion, three hundred eighty-six billion, six hundred one million, five hundred sixteen thousand, three hundred nineteen".