28650632017 has 4 divisors (see below), whose sum is σ = 32743579456. Its totient is φ = 24557684580.

The previous prime is 28650632009. The next prime is 28650632027. The reversal of 28650632017 is 71023605682.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71023605682 = 2 ⋅35511802841.

It is a cyclic number.

It is not a de Polignac number, because 28650632017 - 2³ = 28650632009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28650632027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2046473709 + ... + 2046473722.

It is an arithmetic number, because the mean of its divisors is an integer number (8185894864).

Almost surely, 2^28650632017 is an apocalyptic number.

It is an amenable number.

28650632017 is a deficient number, since it is larger than the sum of its proper divisors (4092947439).

28650632017 is an equidigital number, since it uses as much as digits as its factorization.

28650632017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4092947438.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 28650632017 in words is "twenty-eight billion, six hundred fifty million, six hundred thirty-two thousand, seventeen".