28643569199 has 32 divisors (see below), whose sum is σ = 33767365632. Its totient is φ = 23786784000.

The previous prime is 28643569189. The next prime is 28643569211. The reversal of 28643569199 is 99196534682.

It is not a de Polignac number, because 28643569199 - 2³² = 24348601903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28643569159) 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 31 ways as a sum of consecutive naturals, for example, 45393614 + ... + 45394244.

It is an arithmetic number, because the mean of its divisors is an integer number (1055230176).

Almost surely, 2^28643569199 is an apocalyptic number.

28643569199 is a deficient number, since it is larger than the sum of its proper divisors (5123796433).

28643569199 is a wasteful number, since it uses less digits than its factorization.

28643569199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1527.

The product of its digits is 25194240, while the sum is 62.

The spelling of 28643569199 in words is "twenty-eight billion, six hundred forty-three million, five hundred sixty-nine thousand, one hundred ninety-nine".