28728571459 has 8 divisors (see below), whose sum is σ = 33596203520. Its totient is φ = 24051827016.

The previous prime is 28728571331. The next prime is 28728571471. The reversal of 28728571459 is 95417582782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28728571459 - 2⁷ = 28728571331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28728571489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47721579 + ... + 47722180.

It is an arithmetic number, because the mean of its divisors is an integer number (4199525440).

Almost surely, 2^28728571459 is an apocalyptic number.

28728571459 is a deficient number, since it is larger than the sum of its proper divisors (4867632061).

28728571459 is an equidigital number, since it uses as much as digits as its factorization.

28728571459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95443809.

The product of its digits is 11289600, while the sum is 58.

The spelling of 28728571459 in words is "twenty-eight billion, seven hundred twenty-eight million, five hundred seventy-one thousand, four hundred fifty-nine".