6544213005 has 48 divisors (see below), whose sum is σ = 11527205760. Its totient is φ = 3167978880.

The previous prime is 6544213003. The next prime is 6544213021. The reversal of 6544213005 is 5003124456.

It is not a de Polignac number, because 6544213005 - 2¹ = 6544213003 is a prime.

It is a super-2 number, since 2×6544213005² = 85653447709622260050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6544213003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1327936 + ... + 1332854.

It is an arithmetic number, because the mean of its divisors is an integer number (240150120).

Almost surely, 2^6544213005 is an apocalyptic number.

It is an amenable number.

6544213005 is a deficient number, since it is larger than the sum of its proper divisors (4982992755).

6544213005 is a wasteful number, since it uses less digits than its factorization.

6544213005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5682 (or 5671 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 6544213005 is about 80896.3102063376. The cubic root of 6544213005 is about 1870.4774444102.

The spelling of 6544213005 in words is "six billion, five hundred forty-four million, two hundred thirteen thousand, five".