4281549457 has 2 divisors, whose sum is σ = 4281549458. Its totient is φ = 4281549456.

The previous prime is 4281549443. The next prime is 4281549463. The reversal of 4281549457 is 7549451824.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3794067216 + 487482241 = 61596^2 + 22079^2 .

It is a cyclic number.

It is not a de Polignac number, because 4281549457 - 2⁷ = 4281549329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4281549457.

It is not a weakly prime, because it can be changed into another prime (4281549427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2140774728 + 2140774729.

It is an arithmetic number, because the mean of its divisors is an integer number (2140774729).

Almost surely, 2^4281549457 is an apocalyptic number.

It is an amenable number.

4281549457 is a deficient number, since it is larger than the sum of its proper divisors (1).

4281549457 is an equidigital number, since it uses as much as digits as its factorization.

4281549457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1612800, while the sum is 49.

The square root of 4281549457 is about 65433.5499342654. The cubic root of 4281549457 is about 1623.8041798854.

The spelling of 4281549457 in words is "four billion, two hundred eighty-one million, five hundred forty-nine thousand, four hundred fifty-seven".