685595061834 has 8 divisors (see below), whose sum is σ = 1371190123680. Its totient is φ = 228531687276.

The previous prime is 685595061803. The next prime is 685595061869. The reversal of 685595061834 is 438160595586.

685595061834 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.

685595061834 is an admirable number.

It is a super-2 number, since 2×685595061834² (a number of 24 digits) contains 22 as substring.

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, 57132921814 + ... + 57132921825.

It is an arithmetic number, because the mean of its divisors is an integer number (171398765460).

Almost surely, 2^685595061834 is an apocalyptic number.

685595061834 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

685595061834 is a wasteful number, since it uses less digits than its factorization.

685595061834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114265843644.

The product of its (nonzero) digits is 31104000, while the sum is 60.

The spelling of 685595061834 in words is "six hundred eighty-five billion, five hundred ninety-five million, sixty-one thousand, eight hundred thirty-four".