438983450723329 has 4 divisors (see below), whose sum is σ = 450847868310484. Its totient is φ = 427119033136176.

The previous prime is 438983450723291. The next prime is 438983450723353. The reversal of 438983450723329 is 923327054389834.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 233833030560000 + 205150420163329 = 15291600^2 + 14323073^2 .

It is a cyclic number.

It is not a de Polignac number, because 438983450723329 - 2¹¹ = 438983450721281 is a prime.

It is a super-2 number, since 2×438983450723329² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (438983450123329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5932208793522 + ... + 5932208793595.

It is an arithmetic number, because the mean of its divisors is an integer number (112711967077621).

Almost surely, 2^{438983450723329} is an apocalyptic number.

It is an amenable number.

438983450723329 is a deficient number, since it is larger than the sum of its proper divisors (11864417587155).

438983450723329 is a wasteful number, since it uses less digits than its factorization.

438983450723329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11864417587154.

The product of its (nonzero) digits is 940584960, while the sum is 70.

The spelling of 438983450723329 in words is "four hundred thirty-eight trillion, nine hundred eighty-three billion, four hundred fifty million, seven hundred twenty-three thousand, three hundred twenty-nine".