138889922799 has 8 divisors (see below), whose sum is σ = 185588271792. Its totient is φ = 92392427840.

The previous prime is 138889922797. The next prime is 138889922881. The reversal of 138889922799 is 997229988831.

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

It is a cyclic number.

It is not a de Polignac number, because 138889922799 - 2¹ = 138889922797 is a prime.

It is a super-2 number, since 2×138889922799² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 138889922799.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138889922797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50211894 + ... + 50214659.

It is an arithmetic number, because the mean of its divisors is an integer number (23198533974).

Almost surely, 2^138889922799 is an apocalyptic number.

138889922799 is a deficient number, since it is larger than the sum of its proper divisors (46698348993).

138889922799 is a wasteful number, since it uses less digits than its factorization.

138889922799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100427017.

The product of its digits is 282175488, while the sum is 75.

The spelling of 138889922799 in words is "one hundred thirty-eight billion, eight hundred eighty-nine million, nine hundred twenty-two thousand, seven hundred ninety-nine".