28414122689 has 2 divisors, whose sum is σ = 28414122690. Its totient is φ = 28414122688.

The previous prime is 28414122601. The next prime is 28414122691. The reversal of 28414122689 is 98622141482.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25864680625 + 2549442064 = 160825^2 + 50492^2 .

It is a cyclic number.

It is not a de Polignac number, because 28414122689 - 2¹⁶ = 28414057153 is a prime.

Together with 28414122691, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28414125689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14207061344 + 14207061345.

It is an arithmetic number, because the mean of its divisors is an integer number (14207061345).

Almost surely, 2^28414122689 is an apocalyptic number.

It is an amenable number.

28414122689 is a deficient number, since it is larger than the sum of its proper divisors (1).

28414122689 is an equidigital number, since it uses as much as digits as its factorization.

28414122689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 442368, while the sum is 47.

The spelling of 28414122689 in words is "twenty-eight billion, four hundred fourteen million, one hundred twenty-two thousand, six hundred eighty-nine".