4445075909 has 2 divisors, whose sum is σ = 4445075910. Its totient is φ = 4445075908.

The previous prime is 4445075903. The next prime is 4445075927. The reversal of 4445075909 is 9095705444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4339910884 + 105165025 = 65878^2 + 10255^2 .

It is a cyclic number.

It is not a de Polignac number, because 4445075909 - 2⁸ = 4445075653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4445075903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2222537954 + 2222537955.

It is an arithmetic number, because the mean of its divisors is an integer number (2222537955).

Almost surely, 2^4445075909 is an apocalyptic number.

It is an amenable number.

4445075909 is a deficient number, since it is larger than the sum of its proper divisors (1).

4445075909 is an equidigital number, since it uses as much as digits as its factorization.

4445075909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 47.

The square root of 4445075909 is about 66671.4024826237. The cubic root of 4445075909 is about 1644.2192454751.

The spelling of 4445075909 in words is "four billion, four hundred forty-five million, seventy-five thousand, nine hundred nine".