1684854465163 has 2 divisors, whose sum is σ = 1684854465164.
Its totient is φ = 1684854465162.
The previous prime is 1684854465137. The next prime is 1684854465211. The reversal of 1684854465163 is 3615644584861.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 1684854465163 - 233 = 1676264530571 is a prime.
It is not a weakly prime, because it can be changed into another prime (1684854465113) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 842427232581 + 842427232582.
It is an arithmetic number, because the mean of its divisors is an integer number (842427232582).
Almost surely, 21684854465163 is an apocalyptic number.
1684854465163 is a deficient number, since it is larger than the sum of its proper divisors (1).
1684854465163 is an equidigital number, since it uses as much as digits as its factorization.
1684854465163 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 66355200, while the sum is 61.
The spelling of 1684854465163 in words is "one trillion, six hundred eighty-four billion, eight hundred fifty-four million, four hundred sixty-five thousand, one hundred sixty-three".