685410488417 has 8 divisors (see below), whose sum is σ = 688159314312. Its totient is φ = 682662297600.

The previous prime is 685410488317. The next prime is 685410488419. The reversal of 685410488417 is 714884014586.

It can be written as a sum of positive squares in 4 ways, for example, as 34937591056 + 650472897361 = 186916^2 + 806519^2 .

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 685410488417 - 2²⁴ = 685393711201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (685410488419) 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, 2066417 + ... + 2375057.

It is an arithmetic number, because the mean of its divisors is an integer number (86019914289).

Almost surely, 2^685410488417 is an apocalyptic number.

It is an amenable number.

685410488417 is a deficient number, since it is larger than the sum of its proper divisors (2748825895).

685410488417 is a wasteful number, since it uses less digits than its factorization.

685410488417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317539.

The product of its (nonzero) digits is 6881280, while the sum is 56.

The spelling of 685410488417 in words is "six hundred eighty-five billion, four hundred ten million, four hundred eighty-eight thousand, four hundred seventeen".