28821336234 has 8 divisors (see below), whose sum is σ = 57642672480. Its totient is φ = 9607112076.

The previous prime is 28821336197. The next prime is 28821336293. The reversal of 28821336234 is 43263312882.

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

28821336234 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2401778014 + ... + 2401778025.

It is an arithmetic number, because the mean of its divisors is an integer number (7205334060).

Almost surely, 2^28821336234 is an apocalyptic number.

28821336234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28821336234 is a wasteful number, since it uses less digits than its factorization.

28821336234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4803556044.

The product of its digits is 331776, while the sum is 42.

The spelling of 28821336234 in words is "twenty-eight billion, eight hundred twenty-one million, three hundred thirty-six thousand, two hundred thirty-four".