8124338412 has 72 divisors (see below), whose sum is σ = 20956362336. Its totient is φ = 2652908544.

The previous prime is 8124338377. The next prime is 8124338447. The reversal of 8124338412 is 2148334218.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8124338377) and next prime (8124338447).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1384188 + ... + 1390044.

It is an arithmetic number, because the mean of its divisors is an integer number (291060588).

Almost surely, 2^8124338412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8124338412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10478181168).

8124338412 is an abundant number, since it is smaller than the sum of its proper divisors (12832023924).

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

8124338412 is a wasteful number, since it uses less digits than its factorization.

8124338412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6647 (or 6642 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 8124338412 is about 90135.1119819574. Note that the first 3 decimals coincide. The cubic root of 8124338412 is about 2010.3083123998.

The spelling of 8124338412 in words is "eight billion, one hundred twenty-four million, three hundred thirty-eight thousand, four hundred twelve".