28316185153 has 4 divisors (see below), whose sum is σ = 28320285780. Its totient is φ = 28312084528.

The previous prime is 28316185151. The next prime is 28316185181. The reversal of 28316185153 is 35158161382.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35158161382 = 2 ⋅17579080691.

It can be written as a sum of positive squares in 2 ways, for example, as 9865852929 + 18450332224 = 99327^2 + 135832^2 .

It is a cyclic number.

It is not a de Polignac number, because 28316185153 - 2¹ = 28316185151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28316185151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2039938 + ... + 2053771.

It is an arithmetic number, because the mean of its divisors is an integer number (7080071445).

Almost surely, 2^28316185153 is an apocalyptic number.

It is an amenable number.

28316185153 is a deficient number, since it is larger than the sum of its proper divisors (4100627).

28316185153 is an equidigital number, since it uses as much as digits as its factorization.

28316185153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4100626.

The product of its digits is 172800, while the sum is 43.

The spelling of 28316185153 in words is "twenty-eight billion, three hundred sixteen million, one hundred eighty-five thousand, one hundred fifty-three".