4406661473 has 2 divisors, whose sum is σ = 4406661474. Its totient is φ = 4406661472.

The previous prime is 4406661437. The next prime is 4406661487. The reversal of 4406661473 is 3741666044.

Together with previous prime (4406661437) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3617781904 + 788879569 = 60148^2 + 28087^2 .

It is a cyclic number.

It is not a de Polignac number, because 4406661473 - 2¹⁶ = 4406595937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4406661473.

It is not a weakly prime, because it can be changed into another prime (4406661433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2203330736 + 2203330737.

It is an arithmetic number, because the mean of its divisors is an integer number (2203330737).

Almost surely, 2^4406661473 is an apocalyptic number.

It is an amenable number.

4406661473 is a deficient number, since it is larger than the sum of its proper divisors (1).

4406661473 is an equidigital number, since it uses as much as digits as its factorization.

4406661473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 41.

The square root of 4406661473 is about 66382.6895583480. The cubic root of 4406661473 is about 1639.4690767279.

The spelling of 4406661473 in words is "four billion, four hundred six million, six hundred sixty-one thousand, four hundred seventy-three".