871704120745741 has 2 divisors, whose sum is σ = 871704120745742. Its totient is φ = 871704120745740.

The previous prime is 871704120745699. The next prime is 871704120745937. The reversal of 871704120745741 is 147547021407178.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 825697351502500 + 46006769243241 = 28734950^2 + 6782829^2 .

It is a cyclic number.

It is not a de Polignac number, because 871704120745741 - 2³⁵ = 871669761007373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (871704120745441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435852060372870 + 435852060372871.

It is an arithmetic number, because the mean of its divisors is an integer number (435852060372871).

Almost surely, 2^{871704120745741} is an apocalyptic number.

It is an amenable number.

871704120745741 is a deficient number, since it is larger than the sum of its proper divisors (1).

871704120745741 is an equidigital number, since it uses as much as digits as its factorization.

871704120745741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12293120, while the sum is 58.

The spelling of 871704120745741 in words is "eight hundred seventy-one trillion, seven hundred four billion, one hundred twenty million, seven hundred forty-five thousand, seven hundred forty-one".