1687416588079 has 2 divisors, whose sum is σ = 1687416588080. Its totient is φ = 1687416588078.

The previous prime is 1687416588041. The next prime is 1687416588103. The reversal of 1687416588079 is 9708856147861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1687416588079 - 2¹⁷ = 1687416457007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1687416587999 and 1687416588017.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1687416588029) 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, 843708294039 + 843708294040.

It is an arithmetic number, because the mean of its divisors is an integer number (843708294040).

Almost surely, 2^{1687416588079} is an apocalyptic number.

1687416588079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1687416588079 is an equidigital number, since it uses as much as digits as its factorization.

1687416588079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162570240, while the sum is 70.

The spelling of 1687416588079 in words is "one trillion, six hundred eighty-seven billion, four hundred sixteen million, five hundred eighty-eight thousand, seventy-nine".