138873788103 has 32 divisors (see below), whose sum is σ = 200318469120. Its totient is φ = 85244226560.

The previous prime is 138873788093. The next prime is 138873788129. The reversal of 138873788103 is 301887378831.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 138873788103 - 2⁸ = 138873787847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138873788803) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5882443 + ... + 5906003.

It is an arithmetic number, because the mean of its divisors is an integer number (6259952160).

Almost surely, 2^138873788103 is an apocalyptic number.

138873788103 is a deficient number, since it is larger than the sum of its proper divisors (61444681017).

138873788103 is a wasteful number, since it uses less digits than its factorization.

138873788103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26087.

The product of its (nonzero) digits is 5419008, while the sum is 57.

The spelling of 138873788103 in words is "one hundred thirty-eight billion, eight hundred seventy-three million, seven hundred eighty-eight thousand, one hundred three".