4452978281 has 2 divisors, whose sum is σ = 4452978282. Its totient is φ = 4452978280.

The previous prime is 4452978269. The next prime is 4452978289. The reversal of 4452978281 is 1828792544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3442755625 + 1010222656 = 58675^2 + 31784^2 .

It is a cyclic number.

It is not a de Polignac number, because 4452978281 - 2¹⁰ = 4452977257 is a prime.

It is a super-2 number, since 2×4452978281² = 39658031142115429922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4452978289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2226489140 + 2226489141.

It is an arithmetic number, because the mean of its divisors is an integer number (2226489141).

Almost surely, 2^4452978281 is an apocalyptic number.

It is an amenable number.

4452978281 is a deficient number, since it is larger than the sum of its proper divisors (1).

4452978281 is an equidigital number, since it uses as much as digits as its factorization.

4452978281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1290240, while the sum is 50.

The square root of 4452978281 is about 66730.6397466711. The cubic root of 4452978281 is about 1645.1930226225.

The spelling of 4452978281 in words is "four billion, four hundred fifty-two million, nine hundred seventy-eight thousand, two hundred eighty-one".