138428792395 has 4 divisors (see below), whose sum is σ = 166114550880. Its totient is φ = 110743033912.

The previous prime is 138428792353. The next prime is 138428792407. The reversal of 138428792395 is 593297824831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 593297824831 = 375413 ⋅1580387.

It is a cyclic number.

It is not a de Polignac number, because 138428792395 - 2⁹ = 138428791883 is a prime.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13842879235 + ... + 13842879244.

It is an arithmetic number, because the mean of its divisors is an integer number (41528637720).

Almost surely, 2^138428792395 is an apocalyptic number.

138428792395 is a deficient number, since it is larger than the sum of its proper divisors (27685758485).

138428792395 is an equidigital number, since it uses as much as digits as its factorization.

138428792395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27685758484.

The product of its digits is 26127360, while the sum is 61.

The spelling of 138428792395 in words is "one hundred thirty-eight billion, four hundred twenty-eight million, seven hundred ninety-two thousand, three hundred ninety-five".