28002204220819 has 16 divisors (see below), whose sum is σ = 29001178679040. Its totient is φ = 27009319680000.

The previous prime is 28002204220747. The next prime is 28002204220889. The reversal of 28002204220819 is 91802240220082.

It is a cyclic number.

It is not a de Polignac number, because 28002204220819 - 2¹⁵ = 28002204188051 is a prime.

It is a super-2 number, since 2×28002204220819² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28002204220889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14361259 + ... + 16194139.

It is an arithmetic number, because the mean of its divisors is an integer number (1812573667440).

Almost surely, 2^{28002204220819} is an apocalyptic number.

28002204220819 is a deficient number, since it is larger than the sum of its proper divisors (998974458221).

28002204220819 is a wasteful number, since it uses less digits than its factorization.

28002204220819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1834542.

The product of its (nonzero) digits is 73728, while the sum is 40.

The spelling of 28002204220819 in words is "twenty-eight trillion, two billion, two hundred four million, two hundred twenty thousand, eight hundred nineteen".