6544868928 has 56 divisors (see below), whose sum is σ = 18648688128. Its totient is φ = 2013805056.

The previous prime is 6544868923. The next prime is 6544868933. The reversal of 6544868928 is 8298684456.

It is an interprime number because it is at equal distance from previous prime (6544868923) and next prime (6544868933).

It is not an unprimeable number, because it can be changed into a prime (6544868923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1308576 + ... + 1313567.

It is an arithmetic number, because the mean of its divisors is an integer number (333012288).

Almost surely, 2^6544868928 is an apocalyptic number.

It is an amenable number.

6544868928 is an abundant number, since it is smaller than the sum of its proper divisors (12103819200).

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

6544868928 is a wasteful number, since it uses less digits than its factorization.

6544868928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2622171 (or 2622161 counting only the distinct ones).

The product of its digits is 26542080, while the sum is 60.

The square root of 6544868928 is about 80900.3642018996. The cubic root of 6544868928 is about 1870.5399346433.

The spelling of 6544868928 in words is "six billion, five hundred forty-four million, eight hundred sixty-eight thousand, nine hundred twenty-eight".