28238913210 has 128 divisors (see below), whose sum is σ = 72468587520. Its totient is φ = 7021886976.

The previous prime is 28238913179. The next prime is 28238913223. The reversal of 28238913210 is 1231983282.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14807077 + ... + 14808983.

It is an arithmetic number, because the mean of its divisors is an integer number (566160840).

Almost surely, 2^28238913210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28238913210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36234293760).

28238913210 is an abundant number, since it is smaller than the sum of its proper divisors (44229674310).

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

28238913210 is a wasteful number, since it uses less digits than its factorization.

28238913210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332.

The product of its (nonzero) digits is 41472, while the sum is 39.

The spelling of 28238913210 in words is "twenty-eight billion, two hundred thirty-eight million, nine hundred thirteen thousand, two hundred ten".