6444444442006 has 8 divisors (see below), whose sum is σ = 9674201091384. Its totient is φ = 3219710744880.

The previous prime is 6444444441991. The next prime is 6444444442013. The reversal of 6444444442006 is 6002444444446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×6444444442006² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1255734855 + ... + 1255739986.

It is an arithmetic number, because the mean of its divisors is an integer number (1209275136423).

Almost surely, 2^{6444444442006} is an apocalyptic number.

6444444442006 is a deficient number, since it is larger than the sum of its proper divisors (3229756649378).

6444444442006 is a wasteful number, since it uses less digits than its factorization.

6444444442006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511476126.

The product of its (nonzero) digits is 4718592, while the sum is 46.

The spelling of 6444444442006 in words is "six trillion, four hundred forty-four billion, four hundred forty-four million, four hundred forty-two thousand, six".