28215096207688 has 128 divisors (see below), whose sum is σ = 57555461376000. Its totient is φ = 12889897473024.

The previous prime is 28215096207631. The next prime is 28215096207709. The reversal of 28215096207688 is 88670269051282.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5879367513 + ... + 5879372311.

It is an arithmetic number, because the mean of its divisors is an integer number (449652042000).

Almost surely, 2^{28215096207688} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28215096207688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28777730688000).

28215096207688 is an abundant number, since it is smaller than the sum of its proper divisors (29340365168312).

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

28215096207688 is a wasteful number, since it uses less digits than its factorization.

28215096207688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6279 (or 6275 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 64.

The spelling of 28215096207688 in words is "twenty-eight trillion, two hundred fifteen billion, ninety-six million, two hundred seven thousand, six hundred eighty-eight".