2812312512 has 168 divisors, whose sum is σ = 8522726160. Its totient is φ = 884183040.

The previous prime is 2812312501. The next prime is 2812312519. The reversal of 2812312512 is 2152132182.

2812312512 is a `hidden beast` number, since 28 + 123 + 1 + 2 + 512 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2812312519) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3425062 + ... + 3425882.

Almost surely, 2^2812312512 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 2812312512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4261363080).

2812312512 is an abundant number, since it is smaller than the sum of its proper divisors (5710413648).

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

2812312512 is a wasteful number, since it uses less digits than its factorization.

2812312512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171 (or 1158 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 2812312512 is about 53031.2409057152. The cubic root of 2812312512 is about 1411.5226767645.

Adding to 2812312512 its reverse (2152132182), we get a palindrome (4964444694).

The spelling of 2812312512 in words is "two billion, eight hundred twelve million, three hundred twelve thousand, five hundred twelve".