1768343195257 has 2 divisors, whose sum is σ = 1768343195258. Its totient is φ = 1768343195256.

The previous prime is 1768343195239. The next prime is 1768343195261. The reversal of 1768343195257 is 7525913438671.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1570357353321 + 197985841936 = 1253139^2 + 444956^2 .

It is a cyclic number.

It is not a de Polignac number, because 1768343195257 - 2³⁵ = 1733983456889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1768343195195 and 1768343195204.

It is not a weakly prime, because it can be changed into another prime (1768343193257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 884171597628 + 884171597629.

It is an arithmetic number, because the mean of its divisors is an integer number (884171597629).

Almost surely, 2^{1768343195257} is an apocalyptic number.

It is an amenable number.

1768343195257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1768343195257 is an equidigital number, since it uses as much as digits as its factorization.

1768343195257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38102400, while the sum is 61.

The spelling of 1768343195257 in words is "one trillion, seven hundred sixty-eight billion, three hundred forty-three million, one hundred ninety-five thousand, two hundred fifty-seven".