28326880176 has 160 divisors (see below), whose sum is σ = 84269273088. Its totient is φ = 8031985920.

The previous prime is 28326880163. The next prime is 28326880193. The reversal of 28326880176 is 67108862382.

It is a happy 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, 32079831 + ... + 32080713.

Almost surely, 2^28326880176 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 28326880176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42134636544).

28326880176 is an abundant number, since it is smaller than the sum of its proper divisors (55942392912).

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

28326880176 is a wasteful number, since it uses less digits than its factorization.

28326880176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1519 (or 1513 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 28326880176 in words is "twenty-eight billion, three hundred twenty-six million, eight hundred eighty thousand, one hundred seventy-six".