6394249393 has 4 divisors (see below), whose sum is σ = 7307713600. Its totient is φ = 5480785188.

The previous prime is 6394249349. The next prime is 6394249397. The reversal of 6394249393 is 3939424936.

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 6394249393 - 2⁹ = 6394248881 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6394249393.

It is not an unprimeable number, because it can be changed into a prime (6394249397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 456732093 + ... + 456732106.

It is an arithmetic number, because the mean of its divisors is an integer number (1826928400).

Almost surely, 2^6394249393 is an apocalyptic number.

It is an amenable number.

6394249393 is a deficient number, since it is larger than the sum of its proper divisors (913464207).

6394249393 is an equidigital number, since it uses as much as digits as its factorization.

6394249393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913464206.

The product of its digits is 3779136, while the sum is 52.

The square root of 6394249393 is about 79964.0506290170. The cubic root of 6394249393 is about 1856.0792844501.

The spelling of 6394249393 in words is "six billion, three hundred ninety-four million, two hundred forty-nine thousand, three hundred ninety-three".