28573323647 has 8 divisors (see below), whose sum is σ = 31200569472. Its totient is φ = 25951023000.

The previous prime is 28573323619. The next prime is 28573323673. The reversal of 28573323647 is 74632337582.

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 28573323647 - 2⁸ = 28573323391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28573323595 and 28573323604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28573322647) 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, 1224203 + ... + 1247324.

It is an arithmetic number, because the mean of its divisors is an integer number (3900071184).

Almost surely, 2^28573323647 is an apocalyptic number.

28573323647 is a deficient number, since it is larger than the sum of its proper divisors (2627245825).

28573323647 is a wasteful number, since it uses less digits than its factorization.

28573323647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472589.

The product of its digits is 5080320, while the sum is 50.

The spelling of 28573323647 in words is "twenty-eight billion, five hundred seventy-three million, three hundred twenty-three thousand, six hundred forty-seven".