138784167233121 has 16 divisors (see below), whose sum is σ = 198309691373184. Its totient is φ = 86108155461504.

The previous prime is 138784167233111. The next prime is 138784167233123. The reversal of 138784167233121 is 121332761487831.

It is not a de Polignac number, because 138784167233121 - 2¹⁹ = 138784166708833 is a prime.

It is a super-2 number, since 2×138784167233121² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (138784167233123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27180602076 + ... + 27180607181.

It is an arithmetic number, because the mean of its divisors is an integer number (12394355710824).

Almost surely, 2^{138784167233121} is an apocalyptic number.

It is an amenable number.

138784167233121 is a deficient number, since it is larger than the sum of its proper divisors (59525524140063).

138784167233121 is a wasteful number, since it uses less digits than its factorization.

138784167233121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54361209320.

The product of its digits is 8128512, while the sum is 57.

The spelling of 138784167233121 in words is "one hundred thirty-eight trillion, seven hundred eighty-four billion, one hundred sixty-seven million, two hundred thirty-three thousand, one hundred twenty-one".