684755395813 has 8 divisors (see below), whose sum is σ = 714536092800. Its totient is φ = 654975425808.

The previous prime is 684755395811. The next prime is 684755395823. The reversal of 684755395813 is 318593557486.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 684755395813 - 2¹ = 684755395811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (684755395811) 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, 2748223 + ... + 2987011.

It is an arithmetic number, because the mean of its divisors is an integer number (89317011600).

Almost surely, 2^684755395813 is an apocalyptic number.

It is an amenable number.

684755395813 is a deficient number, since it is larger than the sum of its proper divisors (29780696987).

684755395813 is a wasteful number, since it uses less digits than its factorization.

684755395813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363491.

The product of its digits is 108864000, while the sum is 64.

The spelling of 684755395813 in words is "six hundred eighty-four billion, seven hundred fifty-five million, three hundred ninety-five thousand, eight hundred thirteen".