6444342393 has 16 divisors (see below), whose sum is σ = 8757006336. Its totient is φ = 4214733840.

The previous prime is 6444342379. The next prime is 6444342397. The reversal of 6444342393 is 3932434446.

It is not a de Polignac number, because 6444342393 - 2¹⁶ = 6444276857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6444342397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64393 + ... + 130518.

It is an arithmetic number, because the mean of its divisors is an integer number (547312896).

Almost surely, 2^6444342393 is an apocalyptic number.

It is an amenable number.

6444342393 is a deficient number, since it is larger than the sum of its proper divisors (2312663943).

6444342393 is a wasteful number, since it uses less digits than its factorization.

6444342393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195124.

The product of its digits is 746496, while the sum is 42.

The square root of 6444342393 is about 80276.6615710942. The cubic root of 6444342393 is about 1860.9135675741.

The spelling of 6444342393 in words is "six billion, four hundred forty-four million, three hundred forty-two thousand, three hundred ninety-three".