3838485317021 has 4 divisors (see below), whose sum is σ = 3839249503872. Its totient is φ = 3837721130172.

The previous prime is 3838485317003. The next prime is 3838485317063. The reversal of 3838485317021 is 1207135848383.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3838485317021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3838485310021) 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, 382085891 + ... + 382095936.

It is an arithmetic number, because the mean of its divisors is an integer number (959812375968).

Almost surely, 2^{3838485317021} is an apocalyptic number.

It is an amenable number.

3838485317021 is a deficient number, since it is larger than the sum of its proper divisors (764186851).

3838485317021 is an equidigital number, since it uses as much as digits as its factorization.

3838485317021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764186850.

The product of its (nonzero) digits is 3870720, while the sum is 53.

The spelling of 3838485317021 in words is "three trillion, eight hundred thirty-eight billion, four hundred eighty-five million, three hundred seventeen thousand, twenty-one".