138673523271 has 8 divisors (see below), whose sum is σ = 185196737920. Its totient is φ = 92299662072.

The previous prime is 138673523243. The next prime is 138673523321. The reversal of 138673523271 is 172325376831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 138673523271 - 2²⁹ = 138136652359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 138673523271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138673523201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37336195 + ... + 37339908.

It is an arithmetic number, because the mean of its divisors is an integer number (23149592240).

Almost surely, 2^138673523271 is an apocalyptic number.

138673523271 is a deficient number, since it is larger than the sum of its proper divisors (46523214649).

138673523271 is an equidigital number, since it uses as much as digits as its factorization.

138673523271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74676725.

The product of its digits is 1270080, while the sum is 48.

The spelling of 138673523271 in words is "one hundred thirty-eight billion, six hundred seventy-three million, five hundred twenty-three thousand, two hundred seventy-one".