938508075993 has 4 divisors (see below), whose sum is σ = 1251344101328. Its totient is φ = 625672050660.

The previous prime is 938508075971. The next prime is 938508076109. The reversal of 938508075993 is 399570805839.

938508075993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 938508075993 - 2²⁰ = 938507027417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (938508074993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156418012663 + ... + 156418012668.

It is an arithmetic number, because the mean of its divisors is an integer number (312836025332).

Almost surely, 2^938508075993 is an apocalyptic number.

It is an amenable number.

938508075993 is a deficient number, since it is larger than the sum of its proper divisors (312836025335).

938508075993 is a wasteful number, since it uses less digits than its factorization.

938508075993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312836025334.

The product of its (nonzero) digits is 73483200, while the sum is 66.

The spelling of 938508075993 in words is "nine hundred thirty-eight billion, five hundred eight million, seventy-five thousand, nine hundred ninety-three".