138216523189 has 8 divisors (see below), whose sum is σ = 146929966848. Its totient is φ = 129567864000.

The previous prime is 138216523177. The next prime is 138216523199. The reversal of 138216523189 is 981325612831.

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 138216523189 - 2⁷ = 138216523061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138216523199) by changing a digit.

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, 16191717 + ... + 16200250.

It is an arithmetic number, because the mean of its divisors is an integer number (18366245856).

Almost surely, 2^138216523189 is an apocalyptic number.

It is an amenable number.

138216523189 is a deficient number, since it is larger than the sum of its proper divisors (8713443659).

138216523189 is a wasteful number, since it uses less digits than its factorization.

138216523189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32392235.

The product of its digits is 622080, while the sum is 49.

The spelling of 138216523189 in words is "one hundred thirty-eight billion, two hundred sixteen million, five hundred twenty-three thousand, one hundred eighty-nine".