8171413812 has 60 divisors (see below), whose sum is σ = 21370257216. Its totient is φ = 2722712400.

The previous prime is 8171413769. The next prime is 8171413813. The reversal of 8171413812 is 2183141718.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8171413813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1443187 + ... + 1448837.

Almost surely, 2^8171413812 is an apocalyptic number.

It is an amenable number.

8171413812 is an abundant number, since it is smaller than the sum of its proper divisors (13198843404).

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

8171413812 is a wasteful number, since it uses less digits than its factorization.

8171413812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10130 (or 10119 counting only the distinct ones).

The product of its digits is 10752, while the sum is 36.

The square root of 8171413812 is about 90395.8727597671. The cubic root of 8171413812 is about 2014.1836584651.

The spelling of 8171413812 in words is "eight billion, one hundred seventy-one million, four hundred thirteen thousand, eight hundred twelve".