138413942855 has 8 divisors (see below), whose sum is σ = 166137336672. Its totient is φ = 110704084128.

The previous prime is 138413942827. The next prime is 138413942861. The reversal of 138413942855 is 558249314831.

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

It is a cyclic number.

It is not a de Polignac number, because 138413942855 - 2⁸ = 138413942599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138413942797 and 138413942806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3361259 + ... + 3402188.

It is an arithmetic number, because the mean of its divisors is an integer number (20767167084).

Almost surely, 2^138413942855 is an apocalyptic number.

138413942855 is a deficient number, since it is larger than the sum of its proper divisors (27723393817).

138413942855 is an equidigital number, since it uses as much as digits as its factorization.

138413942855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6767545.

The product of its digits is 4147200, while the sum is 53.

The spelling of 138413942855 in words is "one hundred thirty-eight billion, four hundred thirteen million, nine hundred forty-two thousand, eight hundred fifty-five".