394589362868 has 12 divisors (see below), whose sum is σ = 690578690340. Its totient is φ = 197281165632.

The previous prime is 394589362859. The next prime is 394589362891. The reversal of 394589362868 is 868263985493.

It can be written as a sum of positive squares in 2 ways, for example, as 195692986384 + 198896376484 = 442372^2 + 445978^2 .

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, 3313121 + ... + 3430152.

It is an arithmetic number, because the mean of its divisors is an integer number (57548224195).

Almost surely, 2^394589362868 is an apocalyptic number.

It is an amenable number.

394589362868 is a deficient number, since it is larger than the sum of its proper divisors (295989327472).

394589362868 is a wasteful number, since it uses less digits than its factorization.

394589362868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6757906 (or 6757904 counting only the distinct ones).

The product of its digits is 537477120, while the sum is 71.

The spelling of 394589362868 in words is "three hundred ninety-four billion, five hundred eighty-nine million, three hundred sixty-two thousand, eight hundred sixty-eight".