685960043328 has 336 divisors, whose sum is σ = 2403795348864. Its totient is φ = 182556426240.

The previous prime is 685960043299. The next prime is 685960043387. The reversal of 685960043328 is 823340069586.

685960043328 is a `hidden beast` number, since 6 + 8 + 5 + 9 + 600 + 4 + 3 + 3 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6597183 + ... + 6700353.

It is an arithmetic number, because the mean of its divisors is an integer number (7154152824).

Almost surely, 2^685960043328 is an apocalyptic number.

685960043328 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 685960043328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1201897674432).

685960043328 is an abundant number, since it is smaller than the sum of its proper divisors (1717835305536).

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

685960043328 is a wasteful number, since it uses less digits than its factorization.

685960043328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103310 (or 103297 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 54.

The spelling of 685960043328 in words is "six hundred eighty-five billion, nine hundred sixty million, forty-three thousand, three hundred twenty-eight".