4379944909 has 2 divisors, whose sum is σ = 4379944910. Its totient is φ = 4379944908.

The previous prime is 4379944897. The next prime is 4379944927. The reversal of 4379944909 is 9094499734.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3334716009 + 1045228900 = 57747^2 + 32330^2 .

It is a cyclic number.

It is not a de Polignac number, because 4379944909 - 2⁹ = 4379944397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4379947909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2189972454 + 2189972455.

It is an arithmetic number, because the mean of its divisors is an integer number (2189972455).

Almost surely, 2^4379944909 is an apocalyptic number.

It is an amenable number.

4379944909 is a deficient number, since it is larger than the sum of its proper divisors (1).

4379944909 is an equidigital number, since it uses as much as digits as its factorization.

4379944909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8817984, while the sum is 58.

The square root of 4379944909 is about 66181.1522187397. The cubic root of 4379944909 is about 1636.1491183325.

The spelling of 4379944909 in words is "four billion, three hundred seventy-nine million, nine hundred forty-four thousand, nine hundred nine".