394763446909 has 8 divisors (see below), whose sum is σ = 438843732992. Its totient is φ = 352642284720.

The previous prime is 394763446907. The next prime is 394763446933. The reversal of 394763446909 is 909644367493.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 394763446909 - 2¹ = 394763446907 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394763446901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 489780549 + ... + 489781354.

It is an arithmetic number, because the mean of its divisors is an integer number (54855466624).

Almost surely, 2^394763446909 is an apocalyptic number.

It is an amenable number.

394763446909 is a deficient number, since it is larger than the sum of its proper divisors (44080286083).

394763446909 is a wasteful number, since it uses less digits than its factorization.

394763446909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979561947.

The product of its (nonzero) digits is 105815808, while the sum is 64.

The spelling of 394763446909 in words is "three hundred ninety-four billion, seven hundred sixty-three million, four hundred forty-six thousand, nine hundred nine".