1686834011 has 2 divisors, whose sum is σ = 1686834012. Its totient is φ = 1686834010.

The previous prime is 1686833963. The next prime is 1686834029. The reversal of 1686834011 is 1104386861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1686834011 - 2¹⁸ = 1686571867 is a prime.

It is not a weakly prime, because it can be changed into another prime (1686834211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 843417005 + 843417006.

It is an arithmetic number, because the mean of its divisors is an integer number (843417006).

Almost surely, 2^1686834011 is an apocalyptic number.

1686834011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1686834011 is an equidigital number, since it uses as much as digits as its factorization.

1686834011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 1686834011 is about 41071.0848529717. The cubic root of 1686834011 is about 1190.3941473840.

The spelling of 1686834011 in words is "one billion, six hundred eighty-six million, eight hundred thirty-four thousand, eleven".