871428580117 has 2 divisors, whose sum is σ = 871428580118. Its totient is φ = 871428580116.

The previous prime is 871428580073. The next prime is 871428580153. The reversal of 871428580117 is 711085824178.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 851312547556 + 20116032561 = 922666^2 + 141831^2 .

It is a cyclic number.

It is not a de Polignac number, because 871428580117 - 2³¹ = 869281096469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (871423580117) 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, 435714290058 + 435714290059.

It is an arithmetic number, because the mean of its divisors is an integer number (435714290059).

Almost surely, 2^871428580117 is an apocalyptic number.

It is an amenable number.

871428580117 is a deficient number, since it is larger than the sum of its proper divisors (1).

871428580117 is an equidigital number, since it uses as much as digits as its factorization.

871428580117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1003520, while the sum is 52.

The spelling of 871428580117 in words is "eight hundred seventy-one billion, four hundred twenty-eight million, five hundred eighty thousand, one hundred seventeen".