938686396193 has 16 divisors (see below), whose sum is σ = 1155602171136. Its totient is φ = 742506747840.

The previous prime is 938686396169. The next prime is 938686396243. The reversal of 938686396193 is 391693686839.

It is not a de Polignac number, because 938686396193 - 2²² = 938682201889 is a prime.

It is a super-2 number, since 2×938686396193² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (938686396793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 962846 + ... + 1674647.

It is an arithmetic number, because the mean of its divisors is an integer number (72225135696).

Almost surely, 2^938686396193 is an apocalyptic number.

It is an amenable number.

938686396193 is a deficient number, since it is larger than the sum of its proper divisors (216915774943).

938686396193 is a wasteful number, since it uses less digits than its factorization.

938686396193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641424.

The product of its digits is 272097792, while the sum is 71.

The spelling of 938686396193 in words is "nine hundred thirty-eight billion, six hundred eighty-six million, three hundred ninety-six thousand, one hundred ninety-three".