394668210464 has 48 divisors (see below), whose sum is σ = 853328649600. Its totient is φ = 178190626560.

The previous prime is 394668210457. The next prime is 394668210481. The reversal of 394668210464 is 464012866493.

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 7 ways as a sum of consecutive naturals, for example, 3710024 + ... + 3814919.

It is an arithmetic number, because the mean of its divisors is an integer number (17777680200).

Almost surely, 2^394668210464 is an apocalyptic number.

It is an amenable number.

394668210464 is an abundant number, since it is smaller than the sum of its proper divisors (458660439136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

394668210464 is a wasteful number, since it uses less digits than its factorization.

394668210464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7525113 (or 7525105 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 53.

The spelling of 394668210464 in words is "three hundred ninety-four billion, six hundred sixty-eight million, two hundred ten thousand, four hundred sixty-four".