6394409356 has 6 divisors (see below), whose sum is σ = 11190216380. Its totient is φ = 3197204676.

The previous prime is 6394409347. The next prime is 6394409383. The reversal of 6394409356 is 6539044936.

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 as a sum of consecutive naturals, namely, 799301166 + ... + 799301173.

Almost surely, 2^6394409356 is an apocalyptic number.

It is an amenable number.

6394409356 is a deficient number, since it is larger than the sum of its proper divisors (4795807024).

6394409356 is a wasteful number, since it uses less digits than its factorization.

6394409356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1598602343 (or 1598602341 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 49.

The square root of 6394409356 is about 79965.0508409768. The cubic root of 6394409356 is about 1856.0947619788.

The spelling of 6394409356 in words is "six billion, three hundred ninety-four million, four hundred nine thousand, three hundred fifty-six".