6396481904 has 20 divisors (see below), whose sum is σ = 12515891640. Its totient is φ = 3166574400.

The previous prime is 6396481891. The next prime is 6396481939. The reversal of 6396481904 is 4091846936.

It is a super-4 number, since 4×6396481904⁴ (a number of 40 digits) contains 4444 as substring.

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, 1977494 + ... + 1980725.

It is an arithmetic number, because the mean of its divisors is an integer number (625794582).

Almost surely, 2^6396481904 is an apocalyptic number.

It is an amenable number.

6396481904 is a deficient number, since it is larger than the sum of its proper divisors (6119409736).

6396481904 is a wasteful number, since it uses less digits than its factorization.

6396481904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3958328 (or 3958322 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 50.

The square root of 6396481904 is about 79978.0088774408. The cubic root of 6396481904 is about 1856.2952720252.

The spelling of 6396481904 in words is "six billion, three hundred ninety-six million, four hundred eighty-one thousand, nine hundred four".