28894178176 has 64 divisors (see below), whose sum is σ = 59731689600. Its totient is φ = 13912174080.

The previous prime is 28894178167. The next prime is 28894178221. The reversal of 28894178176 is 67187149882.

It is a tau number, because it is divible by the number of its divisors (64).

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, 353815 + ... + 427753.

It is an arithmetic number, because the mean of its divisors is an integer number (933307650).

Almost surely, 2^28894178176 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 28894178176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29865844800).

28894178176 is an abundant number, since it is smaller than the sum of its proper divisors (30837511424).

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

28894178176 is an equidigital number, since it uses as much as digits as its factorization.

28894178176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74067 (or 74055 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 61.

The spelling of 28894178176 in words is "twenty-eight billion, eight hundred ninety-four million, one hundred seventy-eight thousand, one hundred seventy-six".