28110785107 has 2 divisors, whose sum is σ = 28110785108. Its totient is φ = 28110785106.

The previous prime is 28110785069. The next prime is 28110785111. The reversal of 28110785107 is 70158701182.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28110785107 - 2¹¹ = 28110783059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28110785107.

It is not a weakly prime, because it can be changed into another prime (28110785147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14055392553 + 14055392554.

It is an arithmetic number, because the mean of its divisors is an integer number (14055392554).

Almost surely, 2^28110785107 is an apocalyptic number.

28110785107 is a deficient number, since it is larger than the sum of its proper divisors (1).

28110785107 is an equidigital number, since it uses as much as digits as its factorization.

28110785107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31360, while the sum is 40.

The spelling of 28110785107 in words is "twenty-eight billion, one hundred ten million, seven hundred eighty-five thousand, one hundred seven".