684286310663 has 2 divisors, whose sum is σ = 684286310664. Its totient is φ = 684286310662.

The previous prime is 684286310651. The next prime is 684286310683. The reversal of 684286310663 is 366013682486.

684286310663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 684286310663 - 2¹⁰ = 684286309639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (684286310683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 342143155331 + 342143155332.

It is an arithmetic number, because the mean of its divisors is an integer number (342143155332).

Almost surely, 2^684286310663 is an apocalyptic number.

684286310663 is a deficient number, since it is larger than the sum of its proper divisors (1).

684286310663 is an equidigital number, since it uses as much as digits as its factorization.

684286310663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5971968, while the sum is 53.

The spelling of 684286310663 in words is "six hundred eighty-four billion, two hundred eighty-six million, three hundred ten thousand, six hundred sixty-three".