394605860699 has 2 divisors, whose sum is σ = 394605860700. Its totient is φ = 394605860698.

The previous prime is 394605860689. The next prime is 394605860707. The reversal of 394605860699 is 996068506493.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-394605860699 is a prime.

It is not a weakly prime, because it can be changed into another prime (394605860629) 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 as a sum of consecutive naturals, namely, 197302930349 + 197302930350.

It is an arithmetic number, because the mean of its divisors is an integer number (197302930350).

Almost surely, 2^394605860699 is an apocalyptic number.

394605860699 is a deficient number, since it is larger than the sum of its proper divisors (1).

394605860699 is an equidigital number, since it uses as much as digits as its factorization.

394605860699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75582720, while the sum is 65.

The spelling of 394605860699 in words is "three hundred ninety-four billion, six hundred five million, eight hundred sixty thousand, six hundred ninety-nine".