6449423799 has 96 divisors (see below), whose sum is σ = 11176808448. Its totient is φ = 3238185600.

The previous prime is 6449423777. The next prime is 6449423891. The reversal of 6449423799 is 9973249446.

It is not a de Polignac number, because 6449423799 - 2¹⁷ = 6449292727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6449423749) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 105728229 + ... + 105728289.

It is an arithmetic number, because the mean of its divisors is an integer number (116425088).

Almost surely, 2^6449423799 is an apocalyptic number.

6449423799 is a deficient number, since it is larger than the sum of its proper divisors (4727384649).

6449423799 is an equidigital number, since it uses as much as digits as its factorization.

6449423799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 115 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 57.

The square root of 6449423799 is about 80308.3046701896. The cubic root of 6449423799 is about 1861.4025532348.

The spelling of 6449423799 in words is "six billion, four hundred forty-nine million, four hundred twenty-three thousand, seven hundred ninety-nine".