394641011668 has 24 divisors (see below), whose sum is σ = 700769301120. Its totient is φ = 194424548640.

The previous prime is 394641011657. The next prime is 394641011701. The reversal of 394641011668 is 866110146493.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57705 + ... + 890287.

It is an arithmetic number, because the mean of its divisors is an integer number (29198720880).

Almost surely, 2^394641011668 is an apocalyptic number.

It is an amenable number.

394641011668 is a deficient number, since it is larger than the sum of its proper divisors (306128289452).

394641011668 is a wasteful number, since it uses less digits than its factorization.

394641011668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834327 (or 834325 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 394641011668 in words is "three hundred ninety-four billion, six hundred forty-one million, eleven thousand, six hundred sixty-eight".