871034855427157 has 2 divisors, whose sum is σ = 871034855427158. Its totient is φ = 871034855427156.

The previous prime is 871034855427127. The next prime is 871034855427179. The reversal of 871034855427157 is 751724558430178.

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., 718092018023121 + 152942837404036 = 26797239^2 + 12367006^2 .

It is a cyclic number.

It is not a de Polignac number, because 871034855427157 - 2¹⁹ = 871034854902869 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 871034855427092 and 871034855427101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (871034855427127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435517427713578 + 435517427713579.

It is an arithmetic number, because the mean of its divisors is an integer number (435517427713579).

Almost surely, 2^{871034855427157} is an apocalyptic number.

It is an amenable number.

871034855427157 is a deficient number, since it is larger than the sum of its proper divisors (1).

871034855427157 is an equidigital number, since it uses as much as digits as its factorization.

871034855427157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 263424000, while the sum is 67.

The spelling of 871034855427157 in words is "eight hundred seventy-one trillion, thirty-four billion, eight hundred fifty-five million, four hundred twenty-seven thousand, one hundred fifty-seven".