1797066922697 has 2 divisors, whose sum is σ = 1797066922698. Its totient is φ = 1797066922696.

The previous prime is 1797066922621. The next prime is 1797066922699. The reversal of 1797066922697 is 7962296607971.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1795865329801 + 1201592896 = 1340099^2 + 34664^2 .

It is a cyclic number.

It is not a de Polignac number, because 1797066922697 - 2¹⁰ = 1797066921673 is a prime.

Together with 1797066922699, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1797066922697.

It is not a weakly prime, because it can be changed into another prime (1797066922699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 898533461348 + 898533461349.

It is an arithmetic number, because the mean of its divisors is an integer number (898533461349).

Almost surely, 2^{1797066922697} is an apocalyptic number.

It is an amenable number.

1797066922697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1797066922697 is an equidigital number, since it uses as much as digits as its factorization.

1797066922697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216040608, while the sum is 71.

The spelling of 1797066922697 in words is "one trillion, seven hundred ninety-seven billion, sixty-six million, nine hundred twenty-two thousand, six hundred ninety-seven".