28216824365 has 8 divisors (see below), whose sum is σ = 33897039360. Its totient is φ = 22548892752.

The previous prime is 28216824343. The next prime is 28216824379. The reversal of 28216824365 is 56342861282.

It is a happy number.

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 28216824365 - 2²⁴ = 28200047149 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3065789 + ... + 3074978.

It is an arithmetic number, because the mean of its divisors is an integer number (4237129920).

Almost surely, 2^28216824365 is an apocalyptic number.

It is an amenable number.

28216824365 is a deficient number, since it is larger than the sum of its proper divisors (5680214995).

28216824365 is an equidigital number, since it uses as much as digits as its factorization.

28216824365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6141691.

The product of its digits is 1105920, while the sum is 47.

The spelling of 28216824365 in words is "twenty-eight billion, two hundred sixteen million, eight hundred twenty-four thousand, three hundred sixty-five".