3871449288893 has 2 divisors, whose sum is σ = 3871449288894. Its totient is φ = 3871449288892.

The previous prime is 3871449288793. The next prime is 3871449288907. The reversal of 3871449288893 is 3988829441783.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3096551128804 + 774898160089 = 1759702^2 + 880283^2 .

It is a cyclic number.

It is not a de Polignac number, because 3871449288893 - 2¹⁶ = 3871449223357 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3871449288893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3871449288593) 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, 1935724644446 + 1935724644447.

It is an arithmetic number, because the mean of its divisors is an integer number (1935724644447).

Almost surely, 2^{3871449288893} is an apocalyptic number.

It is an amenable number.

3871449288893 is a deficient number, since it is larger than the sum of its proper divisors (1).

3871449288893 is an equidigital number, since it uses as much as digits as its factorization.

3871449288893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 668860416, while the sum is 74.

The spelling of 3871449288893 in words is "three trillion, eight hundred seventy-one billion, four hundred forty-nine million, two hundred eighty-eight thousand, eight hundred ninety-three".