4464443857 has 2 divisors, whose sum is σ = 4464443858. Its totient is φ = 4464443856.

The previous prime is 4464443821. The next prime is 4464443869. The reversal of 4464443857 is 7583444644.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4182338241 + 282105616 = 64671^2 + 16796^2 .

It is a cyclic number.

It is not a de Polignac number, because 4464443857 - 2¹¹ = 4464441809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4464443857.

It is not a weakly prime, because it can be changed into another prime (4464443807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2232221928 + 2232221929.

It is an arithmetic number, because the mean of its divisors is an integer number (2232221929).

Almost surely, 2^4464443857 is an apocalyptic number.

It is an amenable number.

4464443857 is a deficient number, since it is larger than the sum of its proper divisors (1).

4464443857 is an equidigital number, since it uses as much as digits as its factorization.

4464443857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5160960, while the sum is 49.

The square root of 4464443857 is about 66816.4938993360. The cubic root of 4464443857 is about 1646.6038326422.

The spelling of 4464443857 in words is "four billion, four hundred sixty-four million, four hundred forty-three thousand, eight hundred fifty-seven".