28589249133 has 144 divisors (see below), whose sum is σ = 47387957760. Its totient is φ = 17195068800.

The previous prime is 28589249131. The next prime is 28589249147. The reversal of 28589249133 is 33194298582.

28589249133 is a `hidden beast` number, since 2 + 8 + 589 + 2 + 49 + 13 + 3 = 666.

It is not a de Polignac number, because 28589249133 - 2¹ = 28589249131 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 28589249133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28589249131) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 218238478 + ... + 218238608.

It is an arithmetic number, because the mean of its divisors is an integer number (329083040).

Almost surely, 2^28589249133 is an apocalyptic number.

It is an amenable number.

28589249133 is a deficient number, since it is larger than the sum of its proper divisors (18798708627).

28589249133 is an equidigital number, since it uses as much as digits as its factorization.

28589249133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252 (or 231 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The spelling of 28589249133 in words is "twenty-eight billion, five hundred eighty-nine million, two hundred forty-nine thousand, one hundred thirty-three".