394668783682 has 8 divisors (see below), whose sum is σ = 617742444096. Its totient is φ = 188754635652.

The previous prime is 394668783653. The next prime is 394668783703. The reversal of 394668783682 is 286387866493.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4289878038 + ... + 4289878129.

It is an arithmetic number, because the mean of its divisors is an integer number (77217805512).

Almost surely, 2^394668783682 is an apocalyptic number.

394668783682 is a deficient number, since it is larger than the sum of its proper divisors (223073660414).

394668783682 is a wasteful number, since it uses less digits than its factorization.

394668783682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8579756192.

The product of its digits is 501645312, while the sum is 70.

The spelling of 394668783682 in words is "three hundred ninety-four billion, six hundred sixty-eight million, seven hundred eighty-three thousand, six hundred eighty-two".