5211820328 has 128 divisors (see below), whose sum is σ = 11735539200. Its totient is φ = 2138822400.

The previous prime is 5211820319. The next prime is 5211820357. The reversal of 5211820328 is 8230281125.

It is a happy number.

It is a super-2 number, since 2×5211820328² = 54326142262708055168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5211820294 and 5211820303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12438503 + ... + 12438921.

It is an arithmetic number, because the mean of its divisors is an integer number (91683900).

Almost surely, 2^5211820328 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 5211820328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5867769600).

5211820328 is an abundant number, since it is smaller than the sum of its proper divisors (6523718872).

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

5211820328 is a wasteful number, since it uses less digits than its factorization.

5211820328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 5211820328 is about 72192.9382142049. The cubic root of 5211820328 is about 1733.7899391091.

The spelling of 5211820328 in words is "five billion, two hundred eleven million, eight hundred twenty thousand, three hundred twenty-eight".