8428254281 has 2 divisors, whose sum is σ = 8428254282. Its totient is φ = 8428254280.

The previous prime is 8428254269. The next prime is 8428254293. The reversal of 8428254281 is 1824528248.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (8428254269) and next prime (8428254293).

It can be written as a sum of positive squares in only one way, i.e., 7672884025 + 755370256 = 87595^2 + 27484^2 .

It is a cyclic number.

It is not a de Polignac number, because 8428254281 - 2²² = 8424059977 is a prime.

It is a super-2 number, since 2×8428254281² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8424254281) 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, 4214127140 + 4214127141.

It is an arithmetic number, because the mean of its divisors is an integer number (4214127141).

Almost surely, 2^8428254281 is an apocalyptic number.

It is an amenable number.

8428254281 is a deficient number, since it is larger than the sum of its proper divisors (1).

8428254281 is an equidigital number, since it uses as much as digits as its factorization.

8428254281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 327680, while the sum is 44.

The square root of 8428254281 is about 91805.5242401022. The cubic root of 8428254281 is about 2035.0693334824.

The spelling of 8428254281 in words is "eight billion, four hundred twenty-eight million, two hundred fifty-four thousand, two hundred eighty-one".