28300385533 has 8 divisors (see below), whose sum is σ = 32344673600. Its totient is φ = 24256441440.

The previous prime is 28300385521. The next prime is 28300385539. The reversal of 28300385533 is 33558300382.

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

It is not a de Polignac number, because 28300385533 - 2⁹ = 28300385021 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 (28300385539) 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, 124753 + ... + 268633.

It is an arithmetic number, because the mean of its divisors is an integer number (4043084200).

Almost surely, 2^28300385533 is an apocalyptic number.

It is an amenable number.

28300385533 is a deficient number, since it is larger than the sum of its proper divisors (4044288067).

28300385533 is a wasteful number, since it uses less digits than its factorization.

28300385533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171987.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 28300385533 in words is "twenty-eight billion, three hundred million, three hundred eighty-five thousand, five hundred thirty-three".