1683363654697 has 2 divisors, whose sum is σ = 1683363654698. Its totient is φ = 1683363654696.

The previous prime is 1683363654683. The next prime is 1683363654727. The reversal of 1683363654697 is 7964563633861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1034402907136 + 648960747561 = 1017056^2 + 805581^2 .

It is an emirp because it is prime and its reverse (7964563633861) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1683363654697 is a prime.

It is not a weakly prime, because it can be changed into another prime (1683363654647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 841681827348 + 841681827349.

It is an arithmetic number, because the mean of its divisors is an integer number (841681827349).

Almost surely, 2^{1683363654697} is an apocalyptic number.

It is an amenable number.

1683363654697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1683363654697 is an equidigital number, since it uses as much as digits as its factorization.

1683363654697 is an evil number, because the sum of its binary digits is even.

The product of its digits is 352719360, while the sum is 67.

The spelling of 1683363654697 in words is "one trillion, six hundred eighty-three billion, three hundred sixty-three million, six hundred fifty-four thousand, six hundred ninety-seven".