28265679376 has 45 divisors (see below), whose sum is σ = 60211727149. Its totient is φ = 12844673600.

The previous prime is 28265679353. The next prime is 28265679427. The reversal of 28265679376 is 67397656282.

The square root of 28265679376 is 168124.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 25384136976 + 2881542400 = 159324^2 + 53680^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7395546 + ... + 7399366.

Almost surely, 2^28265679376 is an apocalyptic number.

28265679376 is the 168124-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28265679376

28265679376 is an abundant number, since it is smaller than the sum of its proper divisors (31946047773).

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

28265679376 is an frugal number, since it uses more digits than its factorization.

28265679376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7672 (or 3834 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 61.

The spelling of 28265679376 in words is "twenty-eight billion, two hundred sixty-five million, six hundred seventy-nine thousand, three hundred seventy-six".