138437845384 has 64 divisors (see below), whose sum is σ = 270755654400. Its totient is φ = 66314294784.

The previous prime is 138437845379. The next prime is 138437845387. The reversal of 138437845384 is 483548734831.

It is not an unprimeable number, because it can be changed into a prime (138437845387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3381324 + ... + 3422020.

It is an arithmetic number, because the mean of its divisors is an integer number (4230557100).

Almost surely, 2^138437845384 is an apocalyptic number.

It is an amenable number.

138437845384 is a deficient number, since it is larger than the sum of its proper divisors (132317809016).

138437845384 is a wasteful number, since it uses less digits than its factorization.

138437845384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40942 (or 40938 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 58.

The spelling of 138437845384 in words is "one hundred thirty-eight billion, four hundred thirty-seven million, eight hundred forty-five thousand, three hundred eighty-four".