871418134188020 has 48 divisors (see below), whose sum is σ = 1830859782897600. Its totient is φ = 348399322272000.

The previous prime is 871418134187983. The next prime is 871418134188023. The reversal of 871418134188020 is 20881431814178.

It is a super-2 number, since 2×871418134188020² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871418134188023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1246209251 + ... + 1246908309.

It is an arithmetic number, because the mean of its divisors is an integer number (38142912143700).

Almost surely, 2^{871418134188020} is an apocalyptic number.

It is an amenable number.

871418134188020 is an abundant number, since it is smaller than the sum of its proper divisors (959441648709580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

871418134188020 is a wasteful number, since it uses less digits than its factorization.

871418134188020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729008 (or 729006 counting only the distinct ones).

The product of its (nonzero) digits is 2752512, while the sum is 56.

The spelling of 871418134188020 in words is "eight hundred seventy-one trillion, four hundred eighteen billion, one hundred thirty-four million, one hundred eighty-eight thousand, twenty".