28445071760 has 160 divisors (see below), whose sum is σ = 82128076800. Its totient is φ = 8941155840.

The previous prime is 28445071691. The next prime is 28445071777. The reversal of 28445071760 is 6717054482.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 286721 + ... + 372959.

It is an arithmetic number, because the mean of its divisors is an integer number (513300480).

Almost surely, 2^28445071760 is an apocalyptic number.

28445071760 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 28445071760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41064038400).

28445071760 is an abundant number, since it is smaller than the sum of its proper divisors (53683005040).

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

28445071760 is a wasteful number, since it uses less digits than its factorization.

28445071760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86309 (or 86303 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 44.

The spelling of 28445071760 in words is "twenty-eight billion, four hundred forty-five million, seventy-one thousand, seven hundred sixty".