4438468789 has 2 divisors, whose sum is σ = 4438468790. Its totient is φ = 4438468788.

The previous prime is 4438468777. The next prime is 4438468823. The reversal of 4438468789 is 9878648344.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4076822500 + 361646289 = 63850^2 + 19017^2 .

It is a cyclic number.

It is not a de Polignac number, because 4438468789 - 2⁵ = 4438468757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4438468739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2219234394 + 2219234395.

It is an arithmetic number, because the mean of its divisors is an integer number (2219234395).

Almost surely, 2^4438468789 is an apocalyptic number.

It is an amenable number.

4438468789 is a deficient number, since it is larger than the sum of its proper divisors (1).

4438468789 is an equidigital number, since it uses as much as digits as its factorization.

4438468789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37158912, while the sum is 61.

The square root of 4438468789 is about 66621.8341761918. The cubic root of 4438468789 is about 1643.4041907173.

The spelling of 4438468789 in words is "four billion, four hundred thirty-eight million, four hundred sixty-eight thousand, seven hundred eighty-nine".