28294415605760 has 112 divisors (see below), whose sum is σ = 68334967994256. Its totient is φ = 11245676003328.

The previous prime is 28294415605717. The next prime is 28294415605777. The reversal of 28294415605760 is 6750651449282.

It is a self number, because there is not a number n which added to its sum of digits gives 28294415605760.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4230779 + ... + 8630661.

Almost surely, 2^{28294415605760} is an apocalyptic number.

28294415605760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28294415605760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34167483997128).

28294415605760 is an abundant number, since it is smaller than the sum of its proper divisors (40040552388496).

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

28294415605760 is an equidigital number, since it uses as much as digits as its factorization.

28294415605760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4400071 (or 4400047 counting only the distinct ones).

The product of its (nonzero) digits is 29030400, while the sum is 59.

The spelling of 28294415605760 in words is "twenty-eight trillion, two hundred ninety-four billion, four hundred fifteen million, six hundred five thousand, seven hundred sixty".