7200000000 has 324 divisors, whose sum is σ = 25993639035. Its totient is φ = 1920000000.

The previous prime is 7199999999. The next prime is 7200000019. The reversal of 7200000000 is 27.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 6863791104 + 336208896 = 82848^2 + 18336^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=60000.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1439999998 + ... + 1440000002.

Almost surely, 2^7200000000 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 7200000000

7200000000 is an abundant number, since it is smaller than the sum of its proper divisors (18793639035).

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

7200000000 is an frugal number, since it uses more digits than its factorization.

7200000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68 (or 10 counting only the distinct ones).

The product of its (nonzero) digits is 14, while the sum is 9.

The square root of 7200000000 is about 84852.8137423857. The cubic root of 7200000000 is about 1930.9787692113.

Adding to 7200000000 its reverse (27), we get a palindrome (7200000027).

The spelling of 7200000000 in words is "seven billion, two hundred million", and thus it is an aban number.