28798251802321 has 8 divisors (see below), whose sum is σ = 29747602784000. Its totient is φ = 27850174265520.

The previous prime is 28798251802319. The next prime is 28798251802337. The reversal of 28798251802321 is 12320815289782.

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 28798251802321 - 2¹ = 28798251802319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28798251802721) 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, 318315246 + ... + 318405703.

It is an arithmetic number, because the mean of its divisors is an integer number (3718450348000).

Almost surely, 2^{28798251802321} is an apocalyptic number.

It is an amenable number.

28798251802321 is a deficient number, since it is larger than the sum of its proper divisors (949350981679).

28798251802321 is a wasteful number, since it uses less digits than its factorization.

28798251802321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636722439.

The product of its (nonzero) digits is 7741440, while the sum is 58.

The spelling of 28798251802321 in words is "twenty-eight trillion, seven hundred ninety-eight billion, two hundred fifty-one million, eight hundred two thousand, three hundred twenty-one".