438085406146706 has 4 divisors (see below), whose sum is σ = 657128109220062. Its totient is φ = 219042703073352.

The previous prime is 438085406146691. The next prime is 438085406146753. The reversal of 438085406146706 is 607641604580834.

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 only one way, i.e., 436514983629481 + 1570422517225 = 20892941^2 + 1253165^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 109521351536675 + ... + 109521351536678.

Almost surely, 2^{438085406146706} is an apocalyptic number.

438085406146706 is a deficient number, since it is larger than the sum of its proper divisors (219042703073356).

438085406146706 is a wasteful number, since it uses less digits than its factorization.

438085406146706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219042703073355.

The product of its (nonzero) digits is 92897280, while the sum is 62.

The spelling of 438085406146706 in words is "four hundred thirty-eight trillion, eighty-five billion, four hundred six million, one hundred forty-six thousand, seven hundred six".