7140727728 has 120 divisors (see below), whose sum is σ = 20152772640. Its totient is φ = 2360263680.

The previous prime is 7140727723. The next prime is 7140727733. The reversal of 7140727728 is 8277270417.

It is an interprime number because it is at equal distance from previous prime (7140727723) and next prime (7140727733).

It is not an unprimeable number, because it can be changed into a prime (7140727721) 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 23 ways as a sum of consecutive naturals, for example, 15489418 + ... + 15489878.

It is an arithmetic number, because the mean of its divisors is an integer number (167939772).

Almost surely, 2^7140727728 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 7140727728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10076386320).

7140727728 is an abundant number, since it is smaller than the sum of its proper divisors (13012044912).

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

7140727728 is a wasteful number, since it uses less digits than its factorization.

7140727728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147 (or 1138 counting only the distinct ones).

The product of its (nonzero) digits is 307328, while the sum is 45.

The square root of 7140727728 is about 84502.8267456184. The cubic root of 7140727728 is about 1925.6653889576.

The spelling of 7140727728 in words is "seven billion, one hundred forty million, seven hundred twenty-seven thousand, seven hundred twenty-eight".