138132671138 has 32 divisors (see below), whose sum is σ = 258820116480. Its totient is φ = 53714990160.

The previous prime is 138132671093. The next prime is 138132671161. The reversal of 138132671138 is 831176231831.

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, 776978 + ... + 938061.

It is an arithmetic number, because the mean of its divisors is an integer number (8088128640).

Almost surely, 2^138132671138 is an apocalyptic number.

138132671138 is a deficient number, since it is larger than the sum of its proper divisors (120687445342).

138132671138 is a wasteful number, since it uses less digits than its factorization.

138132671138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715582.

The product of its digits is 145152, while the sum is 44.

The spelling of 138132671138 in words is "one hundred thirty-eight billion, one hundred thirty-two million, six hundred seventy-one thousand, one hundred thirty-eight".