6844381536 has 96 divisors (see below), whose sum is σ = 18406821888. Its totient is φ = 2226147840.

The previous prime is 6844381529. The next prime is 6844381549. The reversal of 6844381536 is 6351834486.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×6844381536² = 93691117220675438592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

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, 739111 + ... + 748313.

It is an arithmetic number, because the mean of its divisors is an integer number (191737728).

Almost surely, 2^6844381536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6844381536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9203410944).

6844381536 is an abundant number, since it is smaller than the sum of its proper divisors (11562440352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6844381536 is a wasteful number, since it uses less digits than its factorization.

6844381536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9404 (or 9396 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 48.

The square root of 6844381536 is about 82730.7774410467. Note that the first 3 decimals coincide. The cubic root of 6844381536 is about 1898.6492279159.

The spelling of 6844381536 in words is "six billion, eight hundred forty-four million, three hundred eighty-one thousand, five hundred thirty-six".