28220465316372 has 96 divisors (see below), whose sum is σ = 77852313907200. Its totient is φ = 7784680509312.

The previous prime is 28220465316359. The next prime is 28220465316403. The reversal of 28220465316372 is 27361356402282.

It is a congruent number.

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, 74203333 + ... + 74582675.

It is an arithmetic number, because the mean of its divisors is an integer number (810961603200).

Almost surely, 2^{28220465316372} is an apocalyptic number.

It is an amenable number.

28220465316372 is an abundant number, since it is smaller than the sum of its proper divisors (49631848590828).

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

28220465316372 is a wasteful number, since it uses less digits than its factorization.

28220465316372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409925 (or 409923 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 51.

The spelling of 28220465316372 in words is "twenty-eight trillion, two hundred twenty billion, four hundred sixty-five million, three hundred sixteen thousand, three hundred seventy-two".