684713417543 has 8 divisors (see below), whose sum is σ = 686427384720. Its totient is φ = 683000441280.

The previous prime is 684713417539. The next prime is 684713417581. The reversal of 684713417543 is 345714317486.

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 684713417543 - 2² = 684713417539 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 (684713417743) 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, 1145771 + ... + 1637747.

It is an arithmetic number, because the mean of its divisors is an integer number (85803423090).

Almost surely, 2^684713417543 is an apocalyptic number.

684713417543 is a deficient number, since it is larger than the sum of its proper divisors (1713967177).

684713417543 is a wasteful number, since it uses less digits than its factorization.

684713417543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495457.

The product of its digits is 6773760, while the sum is 53.

The spelling of 684713417543 in words is "six hundred eighty-four billion, seven hundred thirteen million, four hundred seventeen thousand, five hundred forty-three".