871088408278441 has 4 divisors (see below), whose sum is σ = 871100447774292. Its totient is φ = 871076368782592.

The previous prime is 871088408278411. The next prime is 871088408278477. The reversal of 871088408278441 is 144872804880178.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 781781731329600 + 89306676948841 = 27960360^2 + 9450221^2 .

It is a cyclic number.

It is not a de Polignac number, because 871088408278441 - 2⁷ = 871088408278313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (871088408278411) 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 in 3 ways as a sum of consecutive naturals, for example, 6019639396 + ... + 6019784101.

It is an arithmetic number, because the mean of its divisors is an integer number (217775111943573).

Almost surely, 2^{871088408278441} is an apocalyptic number.

It is an amenable number.

871088408278441 is a deficient number, since it is larger than the sum of its proper divisors (12039495851).

871088408278441 is a wasteful number, since it uses less digits than its factorization.

871088408278441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12039495850.

The product of its (nonzero) digits is 205520896, while the sum is 70.

The spelling of 871088408278441 in words is "eight hundred seventy-one trillion, eighty-eight billion, four hundred eight million, two hundred seventy-eight thousand, four hundred forty-one".