4444306513873 has 2 divisors, whose sum is σ = 4444306513874. Its totient is φ = 4444306513872.

The previous prime is 4444306513859. The next prime is 4444306513949. The reversal of 4444306513873 is 3783156034444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2812369248144 + 1631937265729 = 1677012^2 + 1277473^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4444306513873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4444306513873.

It is not a weakly prime, because it can be changed into another prime (4444306513853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2222153256936 + 2222153256937.

It is an arithmetic number, because the mean of its divisors is an integer number (2222153256937).

Almost surely, 2^{4444306513873} is an apocalyptic number.

It is an amenable number.

4444306513873 is a deficient number, since it is larger than the sum of its proper divisors (1).

4444306513873 is an equidigital number, since it uses as much as digits as its factorization.

4444306513873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11612160, while the sum is 52.

The spelling of 4444306513873 in words is "four trillion, four hundred forty-four billion, three hundred six million, five hundred thirteen thousand, eight hundred seventy-three".