28378336296 has 32 divisors (see below), whose sum is σ = 71677247040. Its totient is φ = 9361924608.

The previous prime is 28378336241. The next prime is 28378336321. The reversal of 28378336296 is 69263387382.

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 7 ways as a sum of consecutive naturals, for example, 6092676 + ... + 6097331.

It is an arithmetic number, because the mean of its divisors is an integer number (2239913970).

Almost surely, 2^28378336296 is an apocalyptic number.

It is an amenable number.

28378336296 is an abundant number, since it is smaller than the sum of its proper divisors (43298910744).

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

28378336296 is a wasteful number, since it uses less digits than its factorization.

28378336296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12190113 (or 12190109 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 57.

The spelling of 28378336296 in words is "twenty-eight billion, three hundred seventy-eight million, three hundred thirty-six thousand, two hundred ninety-six".