28263770111 has 2 divisors, whose sum is σ = 28263770112. Its totient is φ = 28263770110.

The previous prime is 28263770021. The next prime is 28263770113. The reversal of 28263770111 is 11107736282.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28263770111 - 2²⁶ = 28196661247 is a prime.

Together with 28263770113, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28263770113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14131885055 + 14131885056.

It is an arithmetic number, because the mean of its divisors is an integer number (14131885056).

Almost surely, 2^28263770111 is an apocalyptic number.

28263770111 is a deficient number, since it is larger than the sum of its proper divisors (1).

28263770111 is an equidigital number, since it uses as much as digits as its factorization.

28263770111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 38.

The spelling of 28263770111 in words is "twenty-eight billion, two hundred sixty-three million, seven hundred seventy thousand, one hundred eleven".