28216822363 has 4 divisors (see below), whose sum is σ = 28217867400. Its totient is φ = 28215777328.

The previous prime is 28216822357. The next prime is 28216822367. The reversal of 28216822363 is 36322861282.

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 28216822363 - 2²⁹ = 27679951451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28216822367) 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, 480913 + ... + 536386.

It is an arithmetic number, because the mean of its divisors is an integer number (7054466850).

Almost surely, 2^28216822363 is an apocalyptic number.

28216822363 is a deficient number, since it is larger than the sum of its proper divisors (1045037).

28216822363 is a wasteful number, since it uses less digits than its factorization.

28216822363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045036.

The product of its digits is 331776, while the sum is 43.

The spelling of 28216822363 in words is "twenty-eight billion, two hundred sixteen million, eight hundred twenty-two thousand, three hundred sixty-three".