138541195968 has 112 divisors (see below), whose sum is σ = 419020410624. Its totient is φ = 39573918720.

The previous prime is 138541195931. The next prime is 138541196011. The reversal of 138541195968 is 869591145831.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7424346 + ... + 7442982.

Almost surely, 2^138541195968 is an apocalyptic number.

It is an amenable number.

138541195968 is an abundant number, since it is smaller than the sum of its proper divisors (280479214656).

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

138541195968 is a wasteful number, since it uses less digits than its factorization.

138541195968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24190 (or 24180 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 60.

The spelling of 138541195968 in words is "one hundred thirty-eight billion, five hundred forty-one million, one hundred ninety-five thousand, nine hundred sixty-eight".