28061100233 has 2 divisors, whose sum is σ = 28061100234. Its totient is φ = 28061100232.

The previous prime is 28061100187. The next prime is 28061100253. The reversal of 28061100233 is 33200116082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28045196089 + 15904144 = 167467^2 + 3988^2 .

It is a cyclic number.

It is not a de Polignac number, because 28061100233 - 2⁸ = 28061099977 is a prime.

It is not a weakly prime, because it can be changed into another prime (28061100253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14030550116 + 14030550117.

It is an arithmetic number, because the mean of its divisors is an integer number (14030550117).

Almost surely, 2^28061100233 is an apocalyptic number.

It is an amenable number.

28061100233 is a deficient number, since it is larger than the sum of its proper divisors (1).

28061100233 is an equidigital number, since it uses as much as digits as its factorization.

28061100233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 28061100233 in words is "twenty-eight billion, sixty-one million, one hundred thousand, two hundred thirty-three".