138328712447149 has 32 divisors (see below), whose sum is σ = 163971246240000. Its totient is φ = 116616317065920.

The previous prime is 138328712447129. The next prime is 138328712447179. The reversal of 138328712447149 is 941744217823831.

It is not a de Polignac number, because 138328712447149 - 2¹³ = 138328712438957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138328712447129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 341867934 + ... + 342272320.

It is an arithmetic number, because the mean of its divisors is an integer number (5124101445000).

Almost surely, 2^{138328712447149} is an apocalyptic number.

It is an amenable number.

138328712447149 is a deficient number, since it is larger than the sum of its proper divisors (25642533792851).

138328712447149 is an equidigital number, since it uses as much as digits as its factorization.

138328712447149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420818 (or 420804 counting only the distinct ones).

The product of its digits is 65028096, while the sum is 64.

The spelling of 138328712447149 in words is "one hundred thirty-eight trillion, three hundred twenty-eight billion, seven hundred twelve million, four hundred forty-seven thousand, one hundred forty-nine".