6871543040 has 144 divisors (see below), whose sum is σ = 17925062400. Its totient is φ = 2513903616.

The previous prime is 6871543039. The next prime is 6871543057. The reversal of 6871543040 is 403451786.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 6871542985 and 6871543003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 700409 + ... + 710151.

It is an arithmetic number, because the mean of its divisors is an integer number (124479600).

Almost surely, 2^6871543040 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 6871543040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8962531200).

6871543040 is an abundant number, since it is smaller than the sum of its proper divisors (11053519360).

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

6871543040 is a wasteful number, since it uses less digits than its factorization.

6871543040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9812 (or 9798 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 6871543040 is about 82894.7708845377. The cubic root of 6871543040 is about 1901.1574701706.

The spelling of 6871543040 in words is "six billion, eight hundred seventy-one million, five hundred forty-three thousand, forty".