871031788873243 has 2 divisors, whose sum is σ = 871031788873244. Its totient is φ = 871031788873242.

The previous prime is 871031788873237. The next prime is 871031788873319. The reversal of 871031788873243 is 342378887130178.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-871031788873243 is a prime.

It is not a weakly prime, because it can be changed into another prime (871031788273243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435515894436621 + 435515894436622.

It is an arithmetic number, because the mean of its divisors is an integer number (435515894436622).

Almost surely, 2^{871031788873243} is an apocalyptic number.

871031788873243 is a deficient number, since it is larger than the sum of its proper divisors (1).

871031788873243 is an equidigital number, since it uses as much as digits as its factorization.

871031788873243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 303464448, while the sum is 70.

The spelling of 871031788873243 in words is "eight hundred seventy-one trillion, thirty-one billion, seven hundred eighty-eight million, eight hundred seventy-three thousand, two hundred forty-three".