138863164617 has 10 divisors (see below), whose sum is σ = 207437567018. Its totient is φ = 92575443024.

The previous prime is 138863164529. The next prime is 138863164639. The reversal of 138863164617 is 716461368831.

138863164617 is a `hidden beast` number, since 1 + 3 + 8 + 8 + 6 + 3 + 16 + 4 + 617 = 666.

It can be written as a sum of positive squares in only one way, i.e., 107669953161 + 31193211456 = 328131^2 + 176616^2 .

It is not a de Polignac number, because 138863164617 - 2¹¹ = 138863162569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138863164697) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 857179948 + ... + 857180109.

Almost surely, 2^138863164617 is an apocalyptic number.

It is an amenable number.

138863164617 is a deficient number, since it is larger than the sum of its proper divisors (68574402401).

138863164617 is an equidigital number, since it uses as much as digits as its factorization.

138863164617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714360069 (or 1714360060 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The spelling of 138863164617 in words is "one hundred thirty-eight billion, eight hundred sixty-three million, one hundred sixty-four thousand, six hundred seventeen".