5215434012 has 144 divisors (see below), whose sum is σ = 14448077280. Its totient is φ = 1579585536.

The previous prime is 5215433999. The next prime is 5215434019. The reversal of 5215434012 is 2104345125.

5215434012 is a `hidden beast` number, since 5 + 215 + 43 + 401 + 2 = 666.

It is a super-2 number, since 2×5215434012² = 54401503867052832288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5215434019) 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, 3146688 + ... + 3148344.

It is an arithmetic number, because the mean of its divisors is an integer number (100333870).

Almost surely, 2^5215434012 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 5215434012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7224038640).

5215434012 is an abundant number, since it is smaller than the sum of its proper divisors (9232643268).

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

5215434012 is a wasteful number, since it uses less digits than its factorization.

5215434012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860 (or 1855 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 5215434012 is about 72217.9618377589. The cubic root of 5215434012 is about 1734.1905618645.

Adding to 5215434012 its reverse (2104345125), we get a palindrome (7319779137).

The spelling of 5215434012 in words is "five billion, two hundred fifteen million, four hundred thirty-four thousand, twelve".