28821642683 has 8 divisors (see below), whose sum is σ = 28911067440. Its totient is φ = 28732255200.

The previous prime is 28821642671. The next prime is 28821642691. The reversal of 28821642683 is 38624612882.

It is a happy number.

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 28821642683 - 2¹⁴ = 28821626299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28821642623) 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, 2906033 + ... + 2915933.

It is an arithmetic number, because the mean of its divisors is an integer number (3613883430).

Almost surely, 2^28821642683 is an apocalyptic number.

28821642683 is a deficient number, since it is larger than the sum of its proper divisors (89424757).

28821642683 is an equidigital number, since it uses as much as digits as its factorization.

28821642683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18637.

The product of its digits is 1769472, while the sum is 50.

The spelling of 28821642683 in words is "twenty-eight billion, eight hundred twenty-one million, six hundred forty-two thousand, six hundred eighty-three".