685414585368 has 128 divisors (see below), whose sum is σ = 1936460160000. Its totient is φ = 224593140096.

The previous prime is 685414585363. The next prime is 685414585403. The reversal of 685414585368 is 863585414586.

685414585368 is a `hidden beast` number, since 6 + 8 + 5 + 4 + 14 + 585 + 36 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (685414585363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3819955 + ... + 3995357.

It is an arithmetic number, because the mean of its divisors is an integer number (15128595000).

Almost surely, 2^685414585368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 685414585368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (968230080000).

685414585368 is an abundant number, since it is smaller than the sum of its proper divisors (1251045574632).

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

685414585368 is a wasteful number, since it uses less digits than its factorization.

685414585368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175726 (or 175716 counting only the distinct ones).

The product of its digits is 110592000, while the sum is 63.

The spelling of 685414585368 in words is "six hundred eighty-five billion, four hundred fourteen million, five hundred eighty-five thousand, three hundred sixty-eight".