28623203207 has 2 divisors, whose sum is σ = 28623203208. Its totient is φ = 28623203206.

The previous prime is 28623203149. The next prime is 28623203243. The reversal of 28623203207 is 70230232682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28623203207 - 2⁶ = 28623203143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28623203107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14311601603 + 14311601604.

It is an arithmetic number, because the mean of its divisors is an integer number (14311601604).

Almost surely, 2^28623203207 is an apocalyptic number.

28623203207 is a deficient number, since it is larger than the sum of its proper divisors (1).

28623203207 is an equidigital number, since it uses as much as digits as its factorization.

28623203207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 35.

Adding to 28623203207 its reverse (70230232682), we get a palindrome (98853435889).

The spelling of 28623203207 in words is "twenty-eight billion, six hundred twenty-three million, two hundred three thousand, two hundred seven".