138516363889 has 8 divisors (see below), whose sum is σ = 143312103360. Its totient is φ = 133721912016.

The previous prime is 138516363877. The next prime is 138516363989. The reversal of 138516363889 is 988363615831.

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 138516363889 - 2⁵ = 138516363857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138516363989) 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, 100429 + ... + 535834.

It is an arithmetic number, because the mean of its divisors is an integer number (17914012920).

Almost surely, 2^138516363889 is an apocalyptic number.

It is an amenable number.

138516363889 is a deficient number, since it is larger than the sum of its proper divisors (4795739471).

138516363889 is an equidigital number, since it uses as much as digits as its factorization.

138516363889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643799.

The product of its digits is 22394880, while the sum is 61.

The spelling of 138516363889 in words is "one hundred thirty-eight billion, five hundred sixteen million, three hundred sixty-three thousand, eight hundred eighty-nine".