871063435138009 has 2 divisors, whose sum is σ = 871063435138010. Its totient is φ = 871063435138008.

The previous prime is 871063435138003. The next prime is 871063435138031. The reversal of 871063435138009 is 900831534360178.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 826482174451609 + 44581260686400 = 28748603^2 + 6676920^2 .

It is a cyclic number.

It is not a de Polignac number, because 871063435138009 - 2³⁷ = 870925996184537 is a prime.

It is not a weakly prime, because it can be changed into another prime (871063435138003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435531717569004 + 435531717569005.

It is an arithmetic number, because the mean of its divisors is an integer number (435531717569005).

Almost surely, 2^{871063435138009} is an apocalyptic number.

It is an amenable number.

871063435138009 is a deficient number, since it is larger than the sum of its proper divisors (1).

871063435138009 is an equidigital number, since it uses as much as digits as its factorization.

871063435138009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13063680, while the sum is 58.

The spelling of 871063435138009 in words is "eight hundred seventy-one trillion, sixty-three billion, four hundred thirty-five million, one hundred thirty-eight thousand, nine".