871734674149 has 2 divisors, whose sum is σ = 871734674150. Its totient is φ = 871734674148.

The previous prime is 871734674009. The next prime is 871734674177. The reversal of 871734674149 is 941476437178.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 870382641249 + 1352032900 = 932943^2 + 36770^2 .

It is a cyclic number.

It is not a de Polignac number, because 871734674149 - 2¹³ = 871734665957 is a prime.

It is a super-2 number, since 2×871734674149² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (871734674249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435867337074 + 435867337075.

It is an arithmetic number, because the mean of its divisors is an integer number (435867337075).

Almost surely, 2^871734674149 is an apocalyptic number.

It is an amenable number.

871734674149 is a deficient number, since it is larger than the sum of its proper divisors (1).

871734674149 is an equidigital number, since it uses as much as digits as its factorization.

871734674149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28449792, while the sum is 61.

The spelling of 871734674149 in words is "eight hundred seventy-one billion, seven hundred thirty-four million, six hundred seventy-four thousand, one hundred forty-nine".