5312223612 has 144 divisors (see below), whose sum is σ = 14803396608. Its totient is φ = 1600663680.

The previous prime is 5312223611. The next prime is 5312223641. The reversal of 5312223612 is 2163222135.

It is a happy number.

5312223612 is a `hidden beast` number, since 5 + 3 + 1 + 22 + 23 + 612 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5312223611) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1101318 + ... + 1106130.

Almost surely, 2^5312223612 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 5312223612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7401698304).

5312223612 is an abundant number, since it is smaller than the sum of its proper divisors (9491172996).

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

5312223612 is a wasteful number, since it uses less digits than its factorization.

5312223612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4920 (or 4915 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 5312223612 is about 72885.0026548672. The cubic root of 5312223612 is about 1744.8527514549.

Adding to 5312223612 its reverse (2163222135), we get a palindrome (7475445747).

The spelling of 5312223612 in words is "five billion, three hundred twelve million, two hundred twenty-three thousand, six hundred twelve".