138614818546 has 16 divisors (see below), whose sum is σ = 210779350848. Its totient is φ = 68360254000.

The previous prime is 138614818457. The next prime is 138614818561. The reversal of 138614818546 is 645818416831.

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, 1251460 + ... + 1357711.

It is an arithmetic number, because the mean of its divisors is an integer number (13173709428).

Almost surely, 2^138614818546 is an apocalyptic number.

138614818546 is a deficient number, since it is larger than the sum of its proper divisors (72164532302).

138614818546 is a wasteful number, since it uses less digits than its factorization.

138614818546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2609537.

The product of its digits is 4423680, while the sum is 55.

The spelling of 138614818546 in words is "one hundred thirty-eight billion, six hundred fourteen million, eight hundred eighteen thousand, five hundred forty-six".