138535845385 has 16 divisors (see below), whose sum is σ = 190382167296. Its totient is φ = 94800932928.

The previous prime is 138535845379. The next prime is 138535845397. The reversal of 138535845385 is 583548535831.

It is a cyclic number.

It is not a de Polignac number, because 138535845385 - 2⁵ = 138535845353 is a prime.

It is a super-3 number, since 3×138535845385³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4046782 + ... + 4080871.

It is an arithmetic number, because the mean of its divisors is an integer number (11898885456).

Almost surely, 2^138535845385 is an apocalyptic number.

It is an amenable number.

138535845385 is a deficient number, since it is larger than the sum of its proper divisors (51846321911).

138535845385 is an equidigital number, since it uses as much as digits as its factorization.

138535845385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8128152.

The product of its digits is 34560000, while the sum is 58.

The spelling of 138535845385 in words is "one hundred thirty-eight billion, five hundred thirty-five million, eight hundred forty-five thousand, three hundred eighty-five".