28573879709 has 8 divisors (see below), whose sum is σ = 28678206720. Its totient is φ = 28469737296.

The previous prime is 28573879699. The next prime is 28573879717. The reversal of 28573879709 is 90797837582.

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

It is a cyclic number.

It is not a de Polignac number, because 28573879709 - 2²⁴ = 28557102493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28573879729) 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 7 ways as a sum of consecutive naturals, for example, 267872 + ... + 359030.

It is an arithmetic number, because the mean of its divisors is an integer number (3584775840).

Almost surely, 2^28573879709 is an apocalyptic number.

It is an amenable number.

28573879709 is a deficient number, since it is larger than the sum of its proper divisors (104327011).

28573879709 is an equidigital number, since it uses as much as digits as its factorization.

28573879709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92299.

The product of its (nonzero) digits is 53343360, while the sum is 65.

The spelling of 28573879709 in words is "twenty-eight billion, five hundred seventy-three million, eight hundred seventy-nine thousand, seven hundred nine".