6843528540 has 192 divisors, whose sum is σ = 21781509120. Its totient is φ = 1783192320.

The previous prime is 6843528463. The next prime is 6843528607. The reversal of 6843528540 is 458253486.

6843528540 is a `hidden beast` number, since 6 + 84 + 3 + 5 + 28 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13937695 + ... + 13938185.

It is an arithmetic number, because the mean of its divisors is an integer number (113445360).

Almost surely, 2^6843528540 is an apocalyptic number.

6843528540 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 6843528540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10890754560).

6843528540 is an abundant number, since it is smaller than the sum of its proper divisors (14937980580).

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

6843528540 is a wasteful number, since it uses less digits than its factorization.

6843528540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049 (or 1041 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 45.

The square root of 6843528540 is about 82725.6220284864. The cubic root of 6843528540 is about 1898.5703502032.

The spelling of 6843528540 in words is "six billion, eight hundred forty-three million, five hundred twenty-eight thousand, five hundred forty".