5211323988 has 96 divisors (see below), whose sum is σ = 13309892736. Its totient is φ = 1577359872.

The previous prime is 5211323981. The next prime is 5211323989. The reversal of 5211323988 is 8893231125.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5211323981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3585870 + ... + 3587322.

It is an arithmetic number, because the mean of its divisors is an integer number (138644716).

Almost surely, 2^5211323988 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 5211323988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6654946368).

5211323988 is an abundant number, since it is smaller than the sum of its proper divisors (8098568748).

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

5211323988 is a wasteful number, since it uses less digits than its factorization.

5211323988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833 (or 1831 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 5211323988 is about 72189.5005385132. The cubic root of 5211323988 is about 1733.7348990551.

The spelling of 5211323988 in words is "five billion, two hundred eleven million, three hundred twenty-three thousand, nine hundred eighty-eight".