138516800117 has 4 divisors (see below), whose sum is σ = 138533515296. Its totient is φ = 138500084940.

The previous prime is 138516800113. The next prime is 138516800129. The reversal of 138516800117 is 711008615831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 138516800117 - 2² = 138516800113 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138516800113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8345153 + ... + 8361734.

It is an arithmetic number, because the mean of its divisors is an integer number (34633378824).

Almost surely, 2^138516800117 is an apocalyptic number.

It is an amenable number.

138516800117 is a deficient number, since it is larger than the sum of its proper divisors (16715179).

138516800117 is an equidigital number, since it uses as much as digits as its factorization.

138516800117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16715178.

The product of its (nonzero) digits is 40320, while the sum is 41.

The spelling of 138516800117 in words is "one hundred thirty-eight billion, five hundred sixteen million, eight hundred thousand, one hundred seventeen".