6394613904 has 80 divisors (see below), whose sum is σ = 20977050240. Its totient is φ = 1827031680.

The previous prime is 6394613891. The next prime is 6394613917. The reversal of 6394613904 is 4093164936.

6394613904 is a `hidden beast` number, since 639 + 4 + 6 + 1 + 3 + 9 + 0 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (6394613891) and next prime (6394613917).

It is a self number, because there is not a number n which added to its sum of digits gives 6394613904.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1054287 + ... + 1060334.

It is an arithmetic number, because the mean of its divisors is an integer number (262213128).

Almost surely, 2^6394613904 is an apocalyptic number.

It is an amenable number.

6394613904 is an abundant number, since it is smaller than the sum of its proper divisors (14582436336).

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

6394613904 is a wasteful number, since it uses less digits than its factorization.

6394613904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114645 (or 2114633 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The square root of 6394613904 is about 79966.3298144913. The cubic root of 6394613904 is about 1856.1145530391.

The spelling of 6394613904 in words is "six billion, three hundred ninety-four million, six hundred thirteen thousand, nine hundred four".