684303206441 has 2 divisors, whose sum is σ = 684303206442. Its totient is φ = 684303206440.

The previous prime is 684303206347. The next prime is 684303206449. The reversal of 684303206441 is 144602303486.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 500986502416 + 183316704025 = 707804^2 + 428155^2 .

It is a cyclic number.

It is not a de Polignac number, because 684303206441 - 2¹⁴ = 684303190057 is a prime.

It is not a weakly prime, because it can be changed into another prime (684303206449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 342151603220 + 342151603221.

It is an arithmetic number, because the mean of its divisors is an integer number (342151603221).

Almost surely, 2^684303206441 is an apocalyptic number.

It is an amenable number.

684303206441 is a deficient number, since it is larger than the sum of its proper divisors (1).

684303206441 is an equidigital number, since it uses as much as digits as its factorization.

684303206441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 331776, while the sum is 41.

The spelling of 684303206441 in words is "six hundred eighty-four billion, three hundred three million, two hundred six thousand, four hundred forty-one".