28110651187 has 2 divisors, whose sum is σ = 28110651188. Its totient is φ = 28110651186.

The previous prime is 28110651181. The next prime is 28110651227. The reversal of 28110651187 is 78115601182.

It is an a-pointer prime, because the next prime (28110651227) can be obtained adding 28110651187 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28110651187 - 2⁷ = 28110651059 is a prime.

It is not a weakly prime, because it can be changed into another prime (28110651181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14055325593 + 14055325594.

It is an arithmetic number, because the mean of its divisors is an integer number (14055325594).

Almost surely, 2^28110651187 is an apocalyptic number.

28110651187 is a deficient number, since it is larger than the sum of its proper divisors (1).

28110651187 is an equidigital number, since it uses as much as digits as its factorization.

28110651187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 40.

The spelling of 28110651187 in words is "twenty-eight billion, one hundred ten million, six hundred fifty-one thousand, one hundred eighty-seven".