5243872720 has 80 divisors (see below), whose sum is σ = 12488129280. Its totient is φ = 2046868992.

The previous prime is 5243872709. The next prime is 5243872723. The reversal of 5243872720 is 272783425.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×5243872720² = 54996402207120396800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5243872723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1400611 + ... + 1404349.

It is an arithmetic number, because the mean of its divisors is an integer number (156101616).

Almost surely, 2^5243872720 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 5243872720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6244064640).

5243872720 is an abundant number, since it is smaller than the sum of its proper divisors (7244256560).

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

5243872720 is a wasteful number, since it uses less digits than its factorization.

5243872720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4172 (or 4166 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 40.

The square root of 5243872720 is about 72414.5891378250. The cubic root of 5243872720 is about 1737.3369135612.

The spelling of 5243872720 in words is "five billion, two hundred forty-three million, eight hundred seventy-two thousand, seven hundred twenty".