138841305811271 has 32 divisors (see below), whose sum is σ = 161515208064000. Its totient is φ = 116897127436800.

The previous prime is 138841305811231. The next prime is 138841305811277. The reversal of 138841305811271 is 172118503148831.

It is a cyclic number.

It is not a de Polignac number, because 138841305811271 - 2¹⁴ = 138841305794887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138841305811277) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 136978991 + ... + 137988863.

It is an arithmetic number, because the mean of its divisors is an integer number (5047350252000).

Almost surely, 2^{138841305811271} is an apocalyptic number.

138841305811271 is a deficient number, since it is larger than the sum of its proper divisors (22673902252729).

138841305811271 is a wasteful number, since it uses less digits than its factorization.

138841305811271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011519.

The product of its (nonzero) digits is 1290240, while the sum is 53.

The spelling of 138841305811271 in words is "one hundred thirty-eight trillion, eight hundred forty-one billion, three hundred five million, eight hundred eleven thousand, two hundred seventy-one".