138276837729 has 12 divisors (see below), whose sum is σ = 208417262976. Its totient is φ = 88176534072.

The previous prime is 138276837709. The next prime is 138276837731. The reversal of 138276837729 is 927738672831.

It is not a de Polignac number, because 138276837729 - 2⁸ = 138276837473 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (138276837709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 334001817 + ... + 334002230.

It is an arithmetic number, because the mean of its divisors is an integer number (17368105248).

Almost surely, 2^138276837729 is an apocalyptic number.

It is an amenable number.

138276837729 is a deficient number, since it is larger than the sum of its proper divisors (70140425247).

138276837729 is a wasteful number, since it uses less digits than its factorization.

138276837729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668004076 (or 668004073 counting only the distinct ones).

The product of its digits is 42674688, while the sum is 63.

The spelling of 138276837729 in words is "one hundred thirty-eight billion, two hundred seventy-six million, eight hundred thirty-seven thousand, seven hundred twenty-nine".