6504378380 has 24 divisors (see below), whose sum is σ = 14253073632. Its totient is φ = 2488631552.

The previous prime is 6504378317. The next prime is 6504378383. The reversal of 6504378380 is 838734056.

It is a super-2 number, since 2×6504378380² = 84613876220422848800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6504378383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7069517 + ... + 7070436.

It is an arithmetic number, because the mean of its divisors is an integer number (593878068).

Almost surely, 2^6504378380 is an apocalyptic number.

It is an amenable number.

6504378380 is an abundant number, since it is smaller than the sum of its proper divisors (7748695252).

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

6504378380 is a wasteful number, since it uses less digits than its factorization.

6504378380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14139985 (or 14139983 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 44.

The square root of 6504378380 is about 80649.7264719478. The cubic root of 6504378380 is about 1866.6745190288.

The spelling of 6504378380 in words is "six billion, five hundred four million, three hundred seventy-eight thousand, three hundred eighty".