38888894388889 has 8 divisors (see below), whose sum is σ = 38934659443680. Its totient is φ = 38843130238176.

The previous prime is 38888894388871. The next prime is 38888894388893. The reversal of 38888894388889 is 98888349888883.

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 38888894388889 - 2¹³ = 38888894380697 is a prime.

It is a super-2 number, since 2×38888894388889² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38888894388794 and 38888894388803.

It is not an unprimeable number, because it can be changed into a prime (38888894385889) 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, 129547602 + ... + 129847444.

It is an arithmetic number, because the mean of its divisors is an integer number (4866832430460).

Almost surely, 2^{38888894388889} is an apocalyptic number.

It is an amenable number.

38888894388889 is a deficient number, since it is larger than the sum of its proper divisors (45765054791).

38888894388889 is a wasteful number, since it uses less digits than its factorization.

38888894388889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452039.

The product of its digits is 391378894848, while the sum is 100.

The spelling of 38888894388889 in words is "thirty-eight trillion, eight hundred eighty-eight billion, eight hundred ninety-four million, three hundred eighty-eight thousand, eight hundred eighty-nine".