138284079385 has 8 divisors (see below), whose sum is σ = 169471552896. Its totient is φ = 108273491760.

The previous prime is 138284079347. The next prime is 138284079403. The reversal of 138284079385 is 583970482831.

It is a happy number.

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

It is not a de Polignac number, because 138284079385 - 2¹⁵ = 138284046617 is a prime.

It is a super-2 number, since 2×138284079385² (a number of 23 digits) contains 22 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 (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294221211 + ... + 294221680.

It is an arithmetic number, because the mean of its divisors is an integer number (21183944112).

Almost surely, 2^138284079385 is an apocalyptic number.

It is an amenable number.

138284079385 is a deficient number, since it is larger than the sum of its proper divisors (31187473511).

138284079385 is an equidigital number, since it uses as much as digits as its factorization.

138284079385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588442943.

The product of its (nonzero) digits is 11612160, while the sum is 58.

The spelling of 138284079385 in words is "one hundred thirty-eight billion, two hundred eighty-four million, seventy-nine thousand, three hundred eighty-five".