394149326849 has 4 divisors (see below), whose sum is σ = 394152673200. Its totient is φ = 394145980500.

The previous prime is 394149326807. The next prime is 394149326863. The reversal of 394149326849 is 948623941493.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 394149326849 - 2³² = 389854359553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 394149326791 and 394149326800.

It is not an unprimeable number, because it can be changed into a prime (394149323849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1489799 + ... + 1734300.

It is an arithmetic number, because the mean of its divisors is an integer number (98538168300).

Almost surely, 2^394149326849 is an apocalyptic number.

It is an amenable number.

394149326849 is a deficient number, since it is larger than the sum of its proper divisors (3346351).

394149326849 is a wasteful number, since it uses less digits than its factorization.

394149326849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3346350.

The product of its digits is 40310784, while the sum is 62.

The spelling of 394149326849 in words is "three hundred ninety-four billion, one hundred forty-nine million, three hundred twenty-six thousand, eight hundred forty-nine".