9438390938349 has 6 divisors (see below), whose sum is σ = 13633231355406. Its totient is φ = 6292260625560.

The previous prime is 9438390938321. The next prime is 9438390938351.

9438390938349 is a `hidden beast` number, since 9 + 4 + 38 + 390 + 93 + 83 + 49 = 666.

9438390938349 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 9239733534249 + 198657404100 = 3039693^2 + 445710^2 .

It is not a de Polignac number, because 9438390938349 - 2³⁶ = 9369671461613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9438390939349) 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 5 ways as a sum of consecutive naturals, for example, 524355052122 + ... + 524355052139.

It is an arithmetic number, because the mean of its divisors is an integer number (2272205225901).

Almost surely, 2^{9438390938349} is an apocalyptic number.

It is an amenable number.

9438390938349 is a deficient number, since it is larger than the sum of its proper divisors (4194840417057).

9438390938349 is a wasteful number, since it uses less digits than its factorization.

9438390938349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048710104267 (or 1048710104264 counting only the distinct ones).

The product of its (nonzero) digits is 544195584, while the sum is 72.

The spelling of 9438390938349 in words is "nine trillion, four hundred thirty-eight billion, three hundred ninety million, nine hundred thirty-eight thousand, three hundred forty-nine".