6504312064 has 36 divisors (see below), whose sum is σ = 13746944484. Its totient is φ = 3060850688.

The previous prime is 6504312019. The next prime is 6504312077. The reversal of 6504312064 is 4602134056.

It can be written as a sum of positive squares in 2 ways, for example, as 4855302400 + 1649009664 = 69680^2 + 40608^2 .

It is a congruent number.

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, 742927 + ... + 751630.

It is an arithmetic number, because the mean of its divisors is an integer number (381859569).

Almost surely, 2^6504312064 is an apocalyptic number.

6504312064 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6504312064 is an abundant number, since it is smaller than the sum of its proper divisors (7242632420).

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

6504312064 is a wasteful number, since it uses less digits than its factorization.

6504312064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1494590 (or 1494576 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 6504312064 is about 80649.3153349736. The cubic root of 6504312064 is about 1866.6681750555.

The spelling of 6504312064 in words is "six billion, five hundred four million, three hundred twelve thousand, sixty-four".