28213194239 has 8 divisors (see below), whose sum is σ = 28651287360. Its totient is φ = 27777125376.

The previous prime is 28213194227. The next prime is 28213194307. The reversal of 28213194239 is 93249131282.

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

It is a cyclic number.

It is not a de Polignac number, because 28213194239 - 2⁴ = 28213194223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28213194239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28213194539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477962 + ... + 533735.

It is an arithmetic number, because the mean of its divisors is an integer number (3581410920).

Almost surely, 2^28213194239 is an apocalyptic number.

28213194239 is a deficient number, since it is larger than the sum of its proper divisors (438093121).

28213194239 is a wasteful number, since it uses less digits than its factorization.

28213194239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012129.

The product of its digits is 186624, while the sum is 44.

The spelling of 28213194239 in words is "twenty-eight billion, two hundred thirteen million, one hundred ninety-four thousand, two hundred thirty-nine".