6504676128 has 72 divisors (see below), whose sum is σ = 18519254208. Its totient is φ = 2165695872.

The previous prime is 6504676001. The next prime is 6504676141. The reversal of 6504676128 is 8216764056.

6504676128 is a `hidden beast` number, since 6 + 504 + 67 + 61 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 242725 + ... + 268187.

It is an arithmetic number, because the mean of its divisors is an integer number (257211864).

Almost surely, 2^6504676128 is an apocalyptic number.

It is an amenable number.

6504676128 is an abundant number, since it is smaller than the sum of its proper divisors (12014578080).

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

6504676128 is a wasteful number, since it uses less digits than its factorization.

6504676128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26366 (or 26355 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 6504676128 is about 80651.5723839281. The cubic root of 6504676128 is about 1866.7030019004.

The spelling of 6504676128 in words is "six billion, five hundred four million, six hundred seventy-six thousand, one hundred twenty-eight".