138719281232 has 40 divisors (see below), whose sum is σ = 307246555200. Its totient is φ = 59435165952.

The previous prime is 138719281153. The next prime is 138719281249. The reversal of 138719281232 is 232182917831.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257819 + ... + 586437.

It is an arithmetic number, because the mean of its divisors is an integer number (7681163880).

Almost surely, 2^138719281232 is an apocalyptic number.

It is an amenable number.

138719281232 is an abundant number, since it is smaller than the sum of its proper divisors (168527273968).

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

138719281232 is a wasteful number, since it uses less digits than its factorization.

138719281232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332403 (or 332397 counting only the distinct ones).

The product of its digits is 290304, while the sum is 47.

The spelling of 138719281232 in words is "one hundred thirty-eight billion, seven hundred nineteen million, two hundred eighty-one thousand, two hundred thirty-two".