6543004936 has 64 divisors (see below), whose sum is σ = 13457732400. Its totient is φ = 2963865600.

The previous prime is 6543004933. The next prime is 6543004943. The reversal of 6543004936 is 6394003456.

It can be written as a sum of positive squares in 8 ways, for example, as 3627652900 + 2915352036 = 60230^2 + 53994^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (6543004933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4065700 + ... + 4067308.

Almost surely, 2^6543004936 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 6543004936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6728866200).

6543004936 is an abundant number, since it is smaller than the sum of its proper divisors (6914727464).

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

6543004936 is a wasteful number, since it uses less digits than its factorization.

6543004936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2330 (or 2326 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 40.

The square root of 6543004936 is about 80888.8430872886. The cubic root of 6543004936 is about 1870.3623399215.

The spelling of 6543004936 in words is "six billion, five hundred forty-three million, four thousand, nine hundred thirty-six".