28342809213 has 8 divisors (see below), whose sum is σ = 37800944448. Its totient is φ = 18889940064.

The previous prime is 28342809211. The next prime is 28342809263. The reversal of 28342809213 is 31290824382.

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

It is not a de Polignac number, because 28342809213 - 2¹ = 28342809211 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28342809211) 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, 1303945 + ... + 1325502.

It is an arithmetic number, because the mean of its divisors is an integer number (4725118056).

Almost surely, 2^28342809213 is an apocalyptic number.

It is an amenable number.

28342809213 is a deficient number, since it is larger than the sum of its proper divisors (9458135235).

28342809213 is a wasteful number, since it uses less digits than its factorization.

28342809213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2633043.

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 28342809213 in words is "twenty-eight billion, three hundred forty-two million, eight hundred nine thousand, two hundred thirteen".