6544005004 has 12 divisors (see below), whose sum is σ = 12054746200. Its totient is φ = 3099791808.

The previous prime is 6544004977. The next prime is 6544005043. The reversal of 6544005004 is 4005004456.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43052589 + ... + 43052740.

Almost surely, 2^6544005004 is an apocalyptic number.

It is an amenable number.

6544005004 is a deficient number, since it is larger than the sum of its proper divisors (5510741196).

6544005004 is a wasteful number, since it uses less digits than its factorization.

6544005004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86105352 (or 86105350 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 6544005004 is about 80895.0245936053. The cubic root of 6544005004 is about 1870.4576271406.

The spelling of 6544005004 in words is "six billion, five hundred forty-four million, five thousand, four".