871065824256139 has 2 divisors, whose sum is σ = 871065824256140. Its totient is φ = 871065824256138.

The previous prime is 871065824256113. The next prime is 871065824256169. The reversal of 871065824256139 is 931652428560178.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 871065824256139 - 2³⁷ = 870928385302667 is a prime.

It is not a weakly prime, because it can be changed into another prime (871065824256109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435532912128069 + 435532912128070.

It is an arithmetic number, because the mean of its divisors is an integer number (435532912128070).

It is a 1-persistent number, because it is pandigital, but 2⋅871065824256139 = 1742131648512278 is not.

Almost surely, 2^{871065824256139} is an apocalyptic number.

871065824256139 is a deficient number, since it is larger than the sum of its proper divisors (1).

871065824256139 is an equidigital number, since it uses as much as digits as its factorization.

871065824256139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174182400, while the sum is 67.

The spelling of 871065824256139 in words is "eight hundred seventy-one trillion, sixty-five billion, eight hundred twenty-four million, two hundred fifty-six thousand, one hundred thirty-nine".