28568343071 has 4 divisors (see below), whose sum is σ = 28578875952. Its totient is φ = 28557810192.

The previous prime is 28568343061. The next prime is 28568343113. The reversal of 28568343071 is 17034386582.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28568343071 is a prime.

It is a super-2 number, since 2×28568343071² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28568343061) 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 3 ways as a sum of consecutive naturals, for example, 5262371 + ... + 5267796.

It is an arithmetic number, because the mean of its divisors is an integer number (7144718988).

Almost surely, 2^28568343071 is an apocalyptic number.

28568343071 is a deficient number, since it is larger than the sum of its proper divisors (10532881).

28568343071 is a wasteful number, since it uses less digits than its factorization.

28568343071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10532880.

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 28568343071 in words is "twenty-eight billion, five hundred sixty-eight million, three hundred forty-three thousand, seventy-one".