7127213647 has 4 divisors (see below), whose sum is σ = 7196410000. Its totient is φ = 7058017296.

The previous prime is 7127213593. The next prime is 7127213669. The reversal of 7127213647 is 7463127217.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7127213647 - 2¹¹ = 7127211599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7127213677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34598022 + ... + 34598227.

It is an arithmetic number, because the mean of its divisors is an integer number (1799102500).

Almost surely, 2^7127213647 is an apocalyptic number.

7127213647 is a deficient number, since it is larger than the sum of its proper divisors (69196353).

7127213647 is a wasteful number, since it uses less digits than its factorization.

7127213647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69196352.

The product of its digits is 98784, while the sum is 40.

The square root of 7127213647 is about 84422.8265755181. The cubic root of 7127213647 is about 1924.4498250738.

The spelling of 7127213647 in words is "seven billion, one hundred twenty-seven million, two hundred thirteen thousand, six hundred forty-seven".