28224817627 has 4 divisors (see below), whose sum is σ = 28230371136. Its totient is φ = 28219264120.

The previous prime is 28224817619. The next prime is 28224817657. The reversal of 28224817627 is 72671842282.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28224817627 - 2³ = 28224817619 is a prime.

It is a super-2 number, since 2×28224817627² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28224817657) 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, 2769124 + ... + 2779297.

It is an arithmetic number, because the mean of its divisors is an integer number (7057592784).

Almost surely, 2^28224817627 is an apocalyptic number.

28224817627 is a deficient number, since it is larger than the sum of its proper divisors (5553509).

28224817627 is an equidigital number, since it uses as much as digits as its factorization.

28224817627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5553508.

The product of its digits is 1204224, while the sum is 49.

The spelling of 28224817627 in words is "twenty-eight billion, two hundred twenty-four million, eight hundred seventeen thousand, six hundred twenty-seven".