394668700864 has 14 divisors (see below), whose sum is σ = 783170703404. Its totient is φ = 197334350400.

The previous prime is 394668700831. The next prime is 394668700873. The reversal of 394668700864 is 468007866493.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3083349162 + ... + 3083349289.

Almost surely, 2^394668700864 is an apocalyptic number.

It is an amenable number.

394668700864 is a deficient number, since it is larger than the sum of its proper divisors (388502002540).

394668700864 is an equidigital number, since it uses as much as digits as its factorization.

394668700864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6166698463 (or 6166698453 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 61.

The spelling of 394668700864 in words is "three hundred ninety-four billion, six hundred sixty-eight million, seven hundred thousand, eight hundred sixty-four".