438383135066 has 8 divisors (see below), whose sum is σ = 659649071700. Its totient is φ = 218500111168.

The previous prime is 438383135017. The next prime is 438383135081. The reversal of 438383135066 is 660531383834.

It can be written as a sum of positive squares in 2 ways, for example, as 430775632225 + 7607502841 = 656335^2 + 87221^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×438383135066² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345727391 + ... + 345728658.

Almost surely, 2^438383135066 is an apocalyptic number.

438383135066 is a deficient number, since it is larger than the sum of its proper divisors (221265936634).

438383135066 is a wasteful number, since it uses less digits than its factorization.

438383135066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691456368.

The product of its (nonzero) digits is 3732480, while the sum is 50.

The spelling of 438383135066 in words is "four hundred thirty-eight billion, three hundred eighty-three million, one hundred thirty-five thousand, sixty-six".