3871205472943 has 2 divisors, whose sum is σ = 3871205472944. Its totient is φ = 3871205472942.

The previous prime is 3871205472919. The next prime is 3871205472947. The reversal of 3871205472943 is 3492745021783.

3871205472943 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3871205472943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3871205472947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1935602736471 + 1935602736472.

It is an arithmetic number, because the mean of its divisors is an integer number (1935602736472).

Almost surely, 2^{3871205472943} is an apocalyptic number.

3871205472943 is a deficient number, since it is larger than the sum of its proper divisors (1).

3871205472943 is an equidigital number, since it uses as much as digits as its factorization.

3871205472943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10160640, while the sum is 55.

The spelling of 3871205472943 in words is "three trillion, eight hundred seventy-one billion, two hundred five million, four hundred seventy-two thousand, nine hundred forty-three".