28574409209 has 8 divisors (see below), whose sum is σ = 28836349920. Its totient is φ = 28313605600.

The previous prime is 28574409197. The next prime is 28574409211. The reversal of 28574409209 is 90290447582.

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 28574409209 - 2¹² = 28574405113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28574409289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233747 + ... + 334344.

It is an arithmetic number, because the mean of its divisors is an integer number (3604543740).

Almost surely, 2^28574409209 is an apocalyptic number.

It is an amenable number.

28574409209 is a deficient number, since it is larger than the sum of its proper divisors (261940711).

28574409209 is a wasteful number, since it uses less digits than its factorization.

28574409209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568551.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 28574409209 in words is "twenty-eight billion, five hundred seventy-four million, four hundred nine thousand, two hundred nine".