6838385144 has 16 divisors (see below), whose sum is σ = 12826780800. Its totient is φ = 3417910272.

The previous prime is 6838385137. The next prime is 6838385149. The reversal of 6838385144 is 4415838386.

It is a super-2 number, since 2×6838385144² = 93527022755359801472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6838385092 and 6838385101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6838385149) 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, 137432 + ... + 180455.

It is an arithmetic number, because the mean of its divisors is an integer number (801673800).

Almost surely, 2^6838385144 is an apocalyptic number.

It is an amenable number.

6838385144 is a deficient number, since it is larger than the sum of its proper divisors (5988395656).

6838385144 is a wasteful number, since it uses less digits than its factorization.

6838385144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320582 (or 320578 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 50.

The square root of 6838385144 is about 82694.5291056186. The cubic root of 6838385144 is about 1898.0945943365.

The spelling of 6838385144 in words is "six billion, eight hundred thirty-eight million, three hundred eighty-five thousand, one hundred forty-four".