7128828370 has 8 divisors (see below), whose sum is σ = 12831891084. Its totient is φ = 2851531344.

The previous prime is 7128828313. The next prime is 7128828397. The reversal of 7128828370 is 738288217.

It can be written as a sum of positive squares in 2 ways, for example, as 7075669689 + 53158681 = 84117^2 + 7291^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 7128828370.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356441409 + ... + 356441428.

Almost surely, 2^7128828370 is an apocalyptic number.

7128828370 is a deficient number, since it is larger than the sum of its proper divisors (5703062714).

7128828370 is a wasteful number, since it uses less digits than its factorization.

7128828370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712882844.

The product of its (nonzero) digits is 301056, while the sum is 46.

The square root of 7128828370 is about 84432.3893420055. The cubic root of 7128828370 is about 1924.5951468834.

The spelling of 7128828370 in words is "seven billion, one hundred twenty-eight million, eight hundred twenty-eight thousand, three hundred seventy".