28871596571 has 2 divisors, whose sum is σ = 28871596572. Its totient is φ = 28871596570.

The previous prime is 28871596549. The next prime is 28871596573. The reversal of 28871596571 is 17569517882.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28871596571 - 2¹⁰ = 28871595547 is a prime.

It is a Sophie Germain prime.

Together with 28871596573, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28871596571.

It is not a weakly prime, because it can be changed into another prime (28871596573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14435798285 + 14435798286.

It is an arithmetic number, because the mean of its divisors is an integer number (14435798286).

Almost surely, 2^28871596571 is an apocalyptic number.

28871596571 is a deficient number, since it is larger than the sum of its proper divisors (1).

28871596571 is an equidigital number, since it uses as much as digits as its factorization.

28871596571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8467200, while the sum is 59.

The spelling of 28871596571 in words is "twenty-eight billion, eight hundred seventy-one million, five hundred ninety-six thousand, five hundred seventy-one".