28849844419 has 16 divisors (see below), whose sum is σ = 32180359680. Its totient is φ = 25638622560.

The previous prime is 28849844393. The next prime is 28849844423. The reversal of 28849844419 is 91444894882.

It is a cyclic number.

It is not a de Polignac number, because 28849844419 - 2¹⁹ = 28849320131 is a prime.

It is a super-2 number, since 2×28849844419² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28849844459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 408292 + ... + 473710.

It is an arithmetic number, because the mean of its divisors is an integer number (2011272480).

Almost surely, 2^28849844419 is an apocalyptic number.

28849844419 is a deficient number, since it is larger than the sum of its proper divisors (3330515261).

28849844419 is a wasteful number, since it uses less digits than its factorization.

28849844419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66330.

The product of its digits is 21233664, while the sum is 61.

The spelling of 28849844419 in words is "twenty-eight billion, eight hundred forty-nine million, eight hundred forty-four thousand, four hundred nineteen".