138211045678 has 32 divisors (see below), whose sum is σ = 219048948000. Its totient is φ = 65222576640.

The previous prime is 138211045663. The next prime is 138211045717. The reversal of 138211045678 is 876540112831.

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, 11258928 + ... + 11271196.

It is an arithmetic number, because the mean of its divisors is an integer number (6845279625).

Almost surely, 2^138211045678 is an apocalyptic number.

138211045678 is a deficient number, since it is larger than the sum of its proper divisors (80837902322).

138211045678 is a wasteful number, since it uses less digits than its factorization.

138211045678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13380.

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 138211045678 in words is "one hundred thirty-eight billion, two hundred eleven million, forty-five thousand, six hundred seventy-eight".