28444349327 has 4 divisors (see below), whose sum is σ = 28467608400. Its totient is φ = 28421090256.

The previous prime is 28444349273. The next prime is 28444349341. The reversal of 28444349327 is 72394344482.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28444349327 - 2¹² = 28444345231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28444349347) 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, 11627702 + ... + 11630147.

It is an arithmetic number, because the mean of its divisors is an integer number (7116902100).

Almost surely, 2^28444349327 is an apocalyptic number.

28444349327 is a deficient number, since it is larger than the sum of its proper divisors (23259073).

28444349327 is a wasteful number, since it uses less digits than its factorization.

28444349327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23259072.

The product of its digits is 4644864, while the sum is 50.

The spelling of 28444349327 in words is "twenty-eight billion, four hundred forty-four million, three hundred forty-nine thousand, three hundred twenty-seven".