1789496397317 has 2 divisors, whose sum is σ = 1789496397318. Its totient is φ = 1789496397316.

The previous prime is 1789496397253. The next prime is 1789496397319. The reversal of 1789496397317 is 7137936949871.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1475413491556 + 314082905761 = 1214666^2 + 560431^2 .

It is a cyclic number.

It is not a de Polignac number, because 1789496397317 - 2⁶ = 1789496397253 is a prime.

Together with 1789496397319, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1789496397319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 894748198658 + 894748198659.

It is an arithmetic number, because the mean of its divisors is an integer number (894748198659).

Almost surely, 2^{1789496397317} is an apocalyptic number.

It is an amenable number.

1789496397317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1789496397317 is an equidigital number, since it uses as much as digits as its factorization.

1789496397317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432081216, while the sum is 74.

The spelling of 1789496397317 in words is "one trillion, seven hundred eighty-nine billion, four hundred ninety-six million, three hundred ninety-seven thousand, three hundred seventeen".