394673376493 has 16 divisors (see below), whose sum is σ = 443019808512. Its totient is φ = 348538840000.

The previous prime is 394673376467. The next prime is 394673376607.

394673376493 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 394673376493 - 2⁹ = 394673375981 is a prime.

It is a super-2 number, since 2×394673376493² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394673376413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3292453 + ... + 3410218.

It is an arithmetic number, because the mean of its divisors is an integer number (27688738032).

Almost surely, 2^394673376493 is an apocalyptic number.

It is an amenable number.

394673376493 is a deficient number, since it is larger than the sum of its proper divisors (48346432019).

394673376493 is a wasteful number, since it uses less digits than its factorization.

394673376493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6702836.

The product of its digits is 185177664, while the sum is 64.

The spelling of 394673376493 in words is "three hundred ninety-four billion, six hundred seventy-three million, three hundred seventy-six thousand, four hundred ninety-three".