3868516668893 has 2 divisors, whose sum is σ = 3868516668894. Its totient is φ = 3868516668892.

The previous prime is 3868516668881. The next prime is 3868516668899. The reversal of 3868516668893 is 3988666158683.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2097346961284 + 1771169707609 = 1448222^2 + 1330853^2 .

It is a cyclic number.

It is not a de Polignac number, because 3868516668893 - 2³⁰ = 3867442927069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3868516668899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1934258334446 + 1934258334447.

It is an arithmetic number, because the mean of its divisors is an integer number (1934258334447).

Almost surely, 2^{3868516668893} is an apocalyptic number.

It is an amenable number.

3868516668893 is a deficient number, since it is larger than the sum of its proper divisors (1).

3868516668893 is an equidigital number, since it uses as much as digits as its factorization.

3868516668893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2149908480, while the sum is 77.

The spelling of 3868516668893 in words is "three trillion, eight hundred sixty-eight billion, five hundred sixteen million, six hundred sixty-eight thousand, eight hundred ninety-three".