394454454403 has 2 divisors, whose sum is σ = 394454454404. Its totient is φ = 394454454402.

The previous prime is 394454454397. The next prime is 394454454461. The reversal of 394454454403 is 304454454493.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 394454454403 - 2¹⁷ = 394454323331 is a prime.

It is not a weakly prime, because it can be changed into another prime (394454454463) by changing a digit.

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 as a sum of consecutive naturals, namely, 197227227201 + 197227227202.

It is an arithmetic number, because the mean of its divisors is an integer number (197227227202).

Almost surely, 2^394454454403 is an apocalyptic number.

394454454403 is a deficient number, since it is larger than the sum of its proper divisors (1).

394454454403 is an equidigital number, since it uses as much as digits as its factorization.

394454454403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8294400, while the sum is 49.

The spelling of 394454454403 in words is "three hundred ninety-four billion, four hundred fifty-four million, four hundred fifty-four thousand, four hundred three".