138442413126 has 32 divisors (see below), whose sum is σ = 282805447680. Its totient is φ = 45160905536.

The previous prime is 138442413101. The next prime is 138442413139. The reversal of 138442413126 is 621314244831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3592975 + ... + 3631301.

It is an arithmetic number, because the mean of its divisors is an integer number (8837670240).

Almost surely, 2^138442413126 is an apocalyptic number.

138442413126 is an abundant number, since it is smaller than the sum of its proper divisors (144363034554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138442413126 is a wasteful number, since it uses less digits than its factorization.

138442413126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51188.

The product of its digits is 110592, while the sum is 39.

Adding to 138442413126 its reverse (621314244831), we get a palindrome (759756657957).

The spelling of 138442413126 in words is "one hundred thirty-eight billion, four hundred forty-two million, four hundred thirteen thousand, one hundred twenty-six".