394466664493 has 8 divisors (see below), whose sum is σ = 430533489600. Its totient is φ = 358434209280.

The previous prime is 394466664481. The next prime is 394466664509.

394466664493 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 394466664493 - 2²⁹ = 393929793581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394466664433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8568468 + ... + 8614381.

It is an arithmetic number, because the mean of its divisors is an integer number (53816686200).

Almost surely, 2^394466664493 is an apocalyptic number.

It is an amenable number.

394466664493 is a deficient number, since it is larger than the sum of its proper divisors (36066825107).

394466664493 is a wasteful number, since it uses less digits than its factorization.

394466664493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17184947.

The product of its digits is 241864704, while the sum is 64.

The spelling of 394466664493 in words is "three hundred ninety-four billion, four hundred sixty-six million, six hundred sixty-four thousand, four hundred ninety-three".