28222278360 has 128 divisors (see below), whose sum is σ = 87068329920. Its totient is φ = 7313006592.

The previous prime is 28222278353. The next prime is 28222278379. The reversal of 28222278360 is 6387222282.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3801372 + ... + 3808788.

Almost surely, 2^28222278360 is an apocalyptic number.

28222278360 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 28222278360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43534164960).

28222278360 is an abundant number, since it is smaller than the sum of its proper divisors (58846051560).

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

28222278360 is a wasteful number, since it uses less digits than its factorization.

28222278360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8325 (or 8321 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 42.

The spelling of 28222278360 in words is "twenty-eight billion, two hundred twenty-two million, two hundred seventy-eight thousand, three hundred sixty".