6404063516 has 12 divisors (see below), whose sum is σ = 11232642960. Its totient is φ = 3194736960.

The previous prime is 6404063473. The next prime is 6404063543. The reversal of 6404063516 is 6153604046.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1821725 + ... + 1825236.

It is an arithmetic number, because the mean of its divisors is an integer number (936053580).

Almost surely, 2^6404063516 is an apocalyptic number.

It is an amenable number.

6404063516 is a deficient number, since it is larger than the sum of its proper divisors (4828579444).

6404063516 is a wasteful number, since it uses less digits than its factorization.

6404063516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3647404 (or 3647402 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 6404063516 is about 80025.3929449897. The cubic root of 6404063516 is about 1857.0283913637.

The spelling of 6404063516 in words is "six billion, four hundred four million, sixty-three thousand, five hundred sixteen".