1768923361 has 2 divisors, whose sum is σ = 1768923362. Its totient is φ = 1768923360.

The previous prime is 1768923319. The next prime is 1768923397. The reversal of 1768923361 is 1633298671.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1768707136 + 216225 = 42056^2 + 465^2 .

It is an emirp because it is prime and its reverse (1633298671) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1768923361 - 2⁹ = 1768922849 is a prime.

It is not a weakly prime, because it can be changed into another prime (1768923301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 884461680 + 884461681.

It is an arithmetic number, because the mean of its divisors is an integer number (884461681).

Almost surely, 2^1768923361 is an apocalyptic number.

It is an amenable number.

1768923361 is a deficient number, since it is larger than the sum of its proper divisors (1).

1768923361 is an equidigital number, since it uses as much as digits as its factorization.

1768923361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 46.

The square root of 1768923361 is about 42058.5706010083. The cubic root of 1768923361 is about 1209.3991874132.

The spelling of 1768923361 in words is "one billion, seven hundred sixty-eight million, nine hundred twenty-three thousand, three hundred sixty-one".