28759750569 has 63 divisors (see below), whose sum is σ = 47479405197. Its totient is φ = 17399626200.

The previous prime is 28759750529. The next prime is 28759750633. The reversal of 28759750569 is 96505795782.

The square root of 28759750569 is 169587.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 28759750569 - 2²¹ = 28757653417 is a prime.

It is a super-2 number, since 2×28759750569² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28759750529) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 50367054 + ... + 50367624.

Almost surely, 2^28759750569 is an apocalyptic number.

28759750569 is the 169587-th square number.

28759750569 is the 84794-th centered octagonal number.

It is an amenable number.

28759750569 is a deficient number, since it is larger than the sum of its proper divisors (18719654628).

28759750569 is an frugal number, since it uses more digits than its factorization.

28759750569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182 (or 585 counting only the distinct ones).

The product of its (nonzero) digits is 47628000, while the sum is 63.

The spelling of 28759750569 in words is "twenty-eight billion, seven hundred fifty-nine million, seven hundred fifty thousand, five hundred sixty-nine".