85807681705318 has 8 divisors (see below), whose sum is σ = 130524360904080. Its totient is φ = 42299561403960.

The previous prime is 85807681705271. The next prime is 85807681705357. The reversal of 85807681705318 is 81350718670858.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×85807681705318² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302139724173 + ... + 302139724456.

It is an arithmetic number, because the mean of its divisors is an integer number (16315545113010).

Almost surely, 2^{85807681705318} is an apocalyptic number.

85807681705318 is a deficient number, since it is larger than the sum of its proper divisors (44716679198762).

85807681705318 is a wasteful number, since it uses less digits than its factorization.

85807681705318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604279448702.

The product of its (nonzero) digits is 90316800, while the sum is 67.

The spelling of 85807681705318 in words is "eighty-five trillion, eight hundred seven billion, six hundred eighty-one million, seven hundred five thousand, three hundred eighteen".