394663005473 has 16 divisors (see below), whose sum is σ = 437144073216. Its totient is φ = 353286703440.

The previous prime is 394663005469. The next prime is 394663005479. The reversal of 394663005473 is 374500366493.

It is not a de Polignac number, because 394663005473 - 2² = 394663005469 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394663005479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1737740 + ... + 1951682.

It is an arithmetic number, because the mean of its divisors is an integer number (27321504576).

Almost surely, 2^394663005473 is an apocalyptic number.

It is an amenable number.

394663005473 is a deficient number, since it is larger than the sum of its proper divisors (42481067743).

394663005473 is a wasteful number, since it uses less digits than its factorization.

394663005473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216524.

The product of its (nonzero) digits is 4898880, while the sum is 50.

The spelling of 394663005473 in words is "three hundred ninety-four billion, six hundred sixty-three million, five thousand, four hundred seventy-three".