38817767821406 has 24 divisors (see below), whose sum is σ = 69563666664936. Its totient is φ = 16186559553360.

The previous prime is 38817767821403. The next prime is 38817767821429. The reversal of 38817767821406 is 60412876771883.

38817767821406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38817767821403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5352694640 + ... + 5352701891.

It is an arithmetic number, because the mean of its divisors is an integer number (2898486111039).

Almost surely, 2^{38817767821406} is an apocalyptic number.

38817767821406 is a deficient number, since it is larger than the sum of its proper divisors (30745898843530).

38817767821406 is a wasteful number, since it uses less digits than its factorization.

38817767821406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10705396584 (or 10705396577 counting only the distinct ones).

The product of its (nonzero) digits is 151732224, while the sum is 68.

The spelling of 38817767821406 in words is "thirty-eight trillion, eight hundred seventeen billion, seven hundred sixty-seven million, eight hundred twenty-one thousand, four hundred six".