1868034758393 has 2 divisors, whose sum is σ = 1868034758394. Its totient is φ = 1868034758392.

The previous prime is 1868034758371. The next prime is 1868034758413. The reversal of 1868034758393 is 3938574308681.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1853268377104 + 14766381289 = 1361348^2 + 121517^2 .

It is a cyclic number.

It is not a de Polignac number, because 1868034758393 - 2⁸ = 1868034758137 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1868034758353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 934017379196 + 934017379197.

It is an arithmetic number, because the mean of its divisors is an integer number (934017379197).

Almost surely, 2^{1868034758393} is an apocalyptic number.

It is an amenable number.

1868034758393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1868034758393 is an equidigital number, since it uses as much as digits as its factorization.

1868034758393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104509440, while the sum is 65.

The spelling of 1868034758393 in words is "one trillion, eight hundred sixty-eight billion, thirty-four million, seven hundred fifty-eight thousand, three hundred ninety-three".