7128734271 has 8 divisors (see below), whose sum is σ = 9554228400. Its totient is φ = 4727864832.

The previous prime is 7128734269. The next prime is 7128734323. The reversal of 7128734271 is 1724378217.

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

It is not a de Polignac number, because 7128734271 - 2¹ = 7128734269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7128734671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6155496 + ... + 6156653.

It is an arithmetic number, because the mean of its divisors is an integer number (1194278550).

Almost surely, 2^7128734271 is an apocalyptic number.

7128734271 is a deficient number, since it is larger than the sum of its proper divisors (2425494129).

7128734271 is a wasteful number, since it uses less digits than its factorization.

7128734271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12312345.

The product of its digits is 131712, while the sum is 42.

The square root of 7128734271 is about 84431.8320954840. The cubic root of 7128734271 is about 1924.5866787655.

The spelling of 7128734271 in words is "seven billion, one hundred twenty-eight million, seven hundred thirty-four thousand, two hundred seventy-one".