3818314657873 has 2 divisors, whose sum is σ = 3818314657874. Its totient is φ = 3818314657872.

The previous prime is 3818314657853. The next prime is 3818314657879. The reversal of 3818314657873 is 3787564138183.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2955483599104 + 862831058769 = 1719152^2 + 928887^2 .

It is a cyclic number.

It is not a de Polignac number, because 3818314657873 - 2³³ = 3809724723281 is a prime.

It is not a weakly prime, because it can be changed into another prime (3818314657879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1909157328936 + 1909157328937.

It is an arithmetic number, because the mean of its divisors is an integer number (1909157328937).

Almost surely, 2^{3818314657873} is an apocalyptic number.

It is an amenable number.

3818314657873 is a deficient number, since it is larger than the sum of its proper divisors (1).

3818314657873 is an equidigital number, since it uses as much as digits as its factorization.

3818314657873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81285120, while the sum is 64.

The spelling of 3818314657873 in words is "three trillion, eight hundred eighteen billion, three hundred fourteen million, six hundred fifty-seven thousand, eight hundred seventy-three".