938138388718 has 8 divisors (see below), whose sum is σ = 1407225564360. Its totient is φ = 469063200600.

The previous prime is 938138388709. The next prime is 938138388721. The reversal of 938138388718 is 817883831839.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2798608 + ... + 3115843.

It is an arithmetic number, because the mean of its divisors is an integer number (175903195545).

Almost surely, 2^938138388718 is an apocalyptic number.

938138388718 is a deficient number, since it is larger than the sum of its proper divisors (469087175642).

938138388718 is a wasteful number, since it uses less digits than its factorization.

938138388718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5993762.

The product of its digits is 55738368, while the sum is 67.

The spelling of 938138388718 in words is "nine hundred thirty-eight billion, one hundred thirty-eight million, three hundred eighty-eight thousand, seven hundred eighteen".