871403726771 has 16 divisors (see below), whose sum is σ = 888877586688. Its totient is φ = 854109036000.

The previous prime is 871403726761. The next prime is 871403726773. The reversal of 871403726771 is 177627304178.

It is a cyclic number.

It is not a de Polignac number, because 871403726771 - 2²² = 871399532467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (871403726773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34639820 + ... + 34664966.

It is an arithmetic number, because the mean of its divisors is an integer number (55554849168).

Almost surely, 2^871403726771 is an apocalyptic number.

871403726771 is a deficient number, since it is larger than the sum of its proper divisors (17473859917).

871403726771 is a wasteful number, since it uses less digits than its factorization.

871403726771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28682.

The product of its (nonzero) digits is 2765952, while the sum is 53.

The spelling of 871403726771 in words is "eight hundred seventy-one billion, four hundred three million, seven hundred twenty-six thousand, seven hundred seventy-one".