28238125459 has 2 divisors, whose sum is σ = 28238125460. Its totient is φ = 28238125458.

The previous prime is 28238125397. The next prime is 28238125471. The reversal of 28238125459 is 95452183282.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28238125459 - 2²³ = 28229736851 is a prime.

It is not a weakly prime, because it can be changed into another prime (28238125159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14119062729 + 14119062730.

It is an arithmetic number, because the mean of its divisors is an integer number (14119062730).

Almost surely, 2^28238125459 is an apocalyptic number.

28238125459 is a deficient number, since it is larger than the sum of its proper divisors (1).

28238125459 is an equidigital number, since it uses as much as digits as its factorization.

28238125459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1382400, while the sum is 49.

The spelling of 28238125459 in words is "twenty-eight billion, two hundred thirty-eight million, one hundred twenty-five thousand, four hundred fifty-nine".