7128345124 has 12 divisors (see below), whose sum is σ = 12764711344. Its totient is φ = 3481284744.

The previous prime is 7128345113. The next prime is 7128345151. The reversal of 7128345124 is 4215438217.

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, 20721762 + ... + 20722105.

Almost surely, 2^7128345124 is an apocalyptic number.

It is an amenable number.

7128345124 is a deficient number, since it is larger than the sum of its proper divisors (5636366220).

7128345124 is a wasteful number, since it uses less digits than its factorization.

7128345124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41443914 (or 41443912 counting only the distinct ones).

The product of its digits is 53760, while the sum is 37.

The square root of 7128345124 is about 84429.5275599716. The cubic root of 7128345124 is about 1924.5516580203.

The spelling of 7128345124 in words is "seven billion, one hundred twenty-eight million, three hundred forty-five thousand, one hundred twenty-four".