1686800676047 has 2 divisors, whose sum is σ = 1686800676048. Its totient is φ = 1686800676046.

The previous prime is 1686800676007. The next prime is 1686800676137. The reversal of 1686800676047 is 7406760086861.

It is a weak prime.

It is an emirp because it is prime and its reverse (7406760086861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1686800676047 - 2¹⁶ = 1686800610511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1686800676007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 843400338023 + 843400338024.

It is an arithmetic number, because the mean of its divisors is an integer number (843400338024).

Almost surely, 2^{1686800676047} is an apocalyptic number.

1686800676047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1686800676047 is an equidigital number, since it uses as much as digits as its factorization.

1686800676047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16257024, while the sum is 59.

The spelling of 1686800676047 in words is "one trillion, six hundred eighty-six billion, eight hundred million, six hundred seventy-six thousand, forty-seven".