28458256427 has 2 divisors, whose sum is σ = 28458256428. Its totient is φ = 28458256426.

The previous prime is 28458256381. The next prime is 28458256429. The reversal of 28458256427 is 72465285482.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28458256427 - 2²⁴ = 28441479211 is a prime.

Together with 28458256429, 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 (28458256429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14229128213 + 14229128214.

It is an arithmetic number, because the mean of its divisors is an integer number (14229128214).

Almost surely, 2^28458256427 is an apocalyptic number.

28458256427 is a deficient number, since it is larger than the sum of its proper divisors (1).

28458256427 is an equidigital number, since it uses as much as digits as its factorization.

28458256427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8601600, while the sum is 53.

The spelling of 28458256427 in words is "twenty-eight billion, four hundred fifty-eight million, two hundred fifty-six thousand, four hundred twenty-seven".