138758653821386 has 8 divisors (see below), whose sum is σ = 210083195505600. Its totient is φ = 68730921986188.

The previous prime is 138758653821329. The next prime is 138758653821409. The reversal of 138758653821386 is 683128356857831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324202461986 + ... + 324202462413.

It is an arithmetic number, because the mean of its divisors is an integer number (26260399438200).

Almost surely, 2^{138758653821386} is an apocalyptic number.

138758653821386 is a deficient number, since it is larger than the sum of its proper divisors (71324541684214).

138758653821386 is a wasteful number, since it uses less digits than its factorization.

138758653821386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648404924508.

The product of its digits is 1393459200, while the sum is 74.

The spelling of 138758653821386 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-six".