438384664120005 has 12 divisors (see below), whose sum is σ = 759866751141420. Its totient is φ = 233805154197312.

The previous prime is 438384664120001. The next prime is 438384664120199. The reversal of 438384664120005 is 500021466483834.

438384664120005 is a `hidden beast` number, since 4 + 383 + 84 + 6 + 64 + 120 + 0 + 0 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 192831188458689 + 245553475661316 = 13886367^2 + 15670146^2 .

It is not a de Polignac number, because 438384664120005 - 2² = 438384664120001 is a prime.

It is a super-2 number, since 2×438384664120005² (a number of 30 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438384664120001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4870940712400 + ... + 4870940712489.

It is an arithmetic number, because the mean of its divisors is an integer number (63322229261785).

Almost surely, 2^{438384664120005} is an apocalyptic number.

438384664120005 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

438384664120005 is a deficient number, since it is larger than the sum of its proper divisors (321482087021415).

438384664120005 is a wasteful number, since it uses less digits than its factorization.

438384664120005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9741881424900 (or 9741881424897 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 54.

The spelling of 438384664120005 in words is "four hundred thirty-eight trillion, three hundred eighty-four billion, six hundred sixty-four million, one hundred twenty thousand, five".