6843191040 has 648 divisors, whose sum is σ = 28626015600. Its totient is φ = 1560674304.

The previous prime is 6843190973. The next prime is 6843191057. The reversal of 6843191040 is 401913486.

It is a tau number, because it is divible by the number of its divisors (648).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 6843190986 and 6843191004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 15240736 + ... + 15241184.

It is an arithmetic number, because the mean of its divisors is an integer number (44175950).

Almost surely, 2^6843191040 is an apocalyptic number.

6843191040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6843191040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14313007800).

6843191040 is an abundant number, since it is smaller than the sum of its proper divisors (21782824560).

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

6843191040 is an equidigital number, since it uses as much as digits as its factorization.

6843191040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499 (or 466 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 6843191040 is about 82723.5821274683. The cubic root of 6843191040 is about 1898.5391393045.

The spelling of 6843191040 in words is "six billion, eight hundred forty-three million, one hundred ninety-one thousand, forty".