8123504312 has 64 divisors (see below), whose sum is σ = 19016640000. Its totient is φ = 3160563840.

The previous prime is 8123504293. The next prime is 8123504317. The reversal of 8123504312 is 2134053218.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8123504317) 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 15 ways as a sum of consecutive naturals, for example, 448814 + ... + 466562.

It is an arithmetic number, because the mean of its divisors is an integer number (297135000).

Almost surely, 2^8123504312 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 8123504312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9508320000).

8123504312 is an abundant number, since it is smaller than the sum of its proper divisors (10893135688).

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

8123504312 is a wasteful number, since it uses less digits than its factorization.

8123504312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18516 (or 18512 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 8123504312 is about 90130.4849204752. The cubic root of 8123504312 is about 2010.2395127239.

The spelling of 8123504312 in words is "eight billion, one hundred twenty-three million, five hundred four thousand, three hundred twelve".