138758653821385 has 16 divisors (see below), whose sum is σ = 179354833390656. Its totient is φ = 102447381728448.

The previous prime is 138758653821329. The next prime is 138758653821409. The reversal of 138758653821385 is 583128356857831.

It is a cyclic number.

It is not a de Polignac number, because 138758653821385 - 2²³ = 138758645432777 is a prime.

It is a Duffinian 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, 213707179 + ... + 214355488.

It is an arithmetic number, because the mean of its divisors is an integer number (11209677086916).

Almost surely, 2^{138758653821385} is an apocalyptic number.

It is an amenable number.

138758653821385 is a deficient number, since it is larger than the sum of its proper divisors (40596179569271).

138758653821385 is a wasteful number, since it uses less digits than its factorization.

138758653821385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428067672.

The product of its digits is 1161216000, while the sum is 73.

The spelling of 138758653821385 in words is "one hundred thirty-eight trillion, seven hundred fifty-eight billion, six hundred fifty-three million, eight hundred twenty-one thousand, three hundred eighty-five".