685595793873 has 8 divisors (see below), whose sum is σ = 914436877248. Its totient is φ = 456909286544.

The previous prime is 685595793863. The next prime is 685595793893. The reversal of 685595793873 is 378397595586.

685595793873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-685595793873 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 685595793795 and 685595793804.

It is not an unprimeable number, because it can be changed into a prime (685595793863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38633661 + ... + 38651402.

It is an arithmetic number, because the mean of its divisors is an integer number (114304609656).

Almost surely, 2^685595793873 is an apocalyptic number.

It is an amenable number.

685595793873 is a deficient number, since it is larger than the sum of its proper divisors (228841083375).

685595793873 is a wasteful number, since it uses less digits than its factorization.

685595793873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77288023.

The product of its digits is 1714608000, while the sum is 75.

The spelling of 685595793873 in words is "six hundred eighty-five billion, five hundred ninety-five million, seven hundred ninety-three thousand, eight hundred seventy-three".