1687593342361 has 2 divisors, whose sum is σ = 1687593342362. Its totient is φ = 1687593342360.

The previous prime is 1687593342343. The next prime is 1687593342367. The reversal of 1687593342361 is 1632433957861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1686930794761 + 662547600 = 1298819^2 + 25740^2 .

It is a cyclic number.

It is not a de Polignac number, because 1687593342361 - 2⁵ = 1687593342329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1687593342296 and 1687593342305.

It is not a weakly prime, because it can be changed into another prime (1687593342367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 843796671180 + 843796671181.

It is an arithmetic number, because the mean of its divisors is an integer number (843796671181).

Almost surely, 2^{1687593342361} is an apocalyptic number.

It is an amenable number.

1687593342361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1687593342361 is an equidigital number, since it uses as much as digits as its factorization.

1687593342361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19595520, while the sum is 58.

The spelling of 1687593342361 in words is "one trillion, six hundred eighty-seven billion, five hundred ninety-three million, three hundred forty-two thousand, three hundred sixty-one".