1696705084861 has 2 divisors, whose sum is σ = 1696705084862. Its totient is φ = 1696705084860.

The previous prime is 1696705084793. The next prime is 1696705084873. The reversal of 1696705084861 is 1684805076961.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1335526922500 + 361178162361 = 1155650^2 + 600981^2 .

It is a cyclic number.

It is not a de Polignac number, because 1696705084861 - 2⁷ = 1696705084733 is a prime.

It is a super-2 number, since 2×1696705084861² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1696705084861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1696705085861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 848352542430 + 848352542431.

It is an arithmetic number, because the mean of its divisors is an integer number (848352542431).

Almost surely, 2^{1696705084861} is an apocalyptic number.

It is an amenable number.

1696705084861 is a deficient number, since it is larger than the sum of its proper divisors (1).

1696705084861 is an equidigital number, since it uses as much as digits as its factorization.

1696705084861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17418240, while the sum is 61.

The spelling of 1696705084861 in words is "one trillion, six hundred ninety-six billion, seven hundred five million, eighty-four thousand, eight hundred sixty-one".