1686144107 has 2 divisors, whose sum is σ = 1686144108. Its totient is φ = 1686144106.

The previous prime is 1686144101. The next prime is 1686144169. The reversal of 1686144107 is 7014416861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1686144107 - 2²² = 1681949803 is a prime.

It is not a weakly prime, because it can be changed into another prime (1686144101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 843072053 + 843072054.

It is an arithmetic number, because the mean of its divisors is an integer number (843072054).

Almost surely, 2^1686144107 is an apocalyptic number.

1686144107 is a deficient number, since it is larger than the sum of its proper divisors (1).

1686144107 is an equidigital number, since it uses as much as digits as its factorization.

1686144107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 1686144107 is about 41062.6850924291. The cubic root of 1686144107 is about 1190.2318374656.

The spelling of 1686144107 in words is "one billion, six hundred eighty-six million, one hundred forty-four thousand, one hundred seven".