394454454494 has 16 divisors (see below), whose sum is σ = 605610107232. Its totient is φ = 192636880128.

The previous prime is 394454454463. The next prime is 394454454517. The reversal of 394454454494 is 494454454493.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13100219 + ... + 13130294.

It is an arithmetic number, because the mean of its divisors is an integer number (37850631702).

Almost surely, 2^394454454494 is an apocalyptic number.

394454454494 is a deficient number, since it is larger than the sum of its proper divisors (211155652738).

394454454494 is a wasteful number, since it uses less digits than its factorization.

394454454494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26230691.

The product of its digits is 99532800, while the sum is 59.

Subtracting 394454454494 from its reverse (494454454493), we obtain a palindrome (99999999999).

The spelling of 394454454494 in words is "three hundred ninety-four billion, four hundred fifty-four million, four hundred fifty-four thousand, four hundred ninety-four".