871707022073149 has 2 divisors, whose sum is σ = 871707022073150. Its totient is φ = 871707022073148.

The previous prime is 871707022073077. The next prime is 871707022073191. The reversal of 871707022073149 is 941370220707178.

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., 597655320060100 + 274051702013049 = 24446990^2 + 16554507^2 .

It is a cyclic number.

It is not a de Polignac number, because 871707022073149 - 2⁷ = 871707022073021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 871707022073093 and 871707022073102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (871707062073149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435853511036574 + 435853511036575.

It is an arithmetic number, because the mean of its divisors is an integer number (435853511036575).

Almost surely, 2^{871707022073149} is an apocalyptic number.

It is an amenable number.

871707022073149 is a deficient number, since it is larger than the sum of its proper divisors (1).

871707022073149 is an equidigital number, since it uses as much as digits as its factorization.

871707022073149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8297856, while the sum is 58.

The spelling of 871707022073149 in words is "eight hundred seventy-one trillion, seven hundred seven billion, twenty-two million, seventy-three thousand, one hundred forty-nine".