28076845716 has 72 divisors (see below), whose sum is σ = 73139978184. Its totient is φ = 9074799360.

The previous prime is 28076845711. The next prime is 28076845717. The reversal of 28076845716 is 61754867082.

28076845716 is a `hidden beast` number, since 2 + 8 + 0 + 7 + 68 + 4 + 571 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 12011283216 + 16065562500 = 109596^2 + 126750^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28076845711) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 354306 + ... + 426246.

Almost surely, 2^28076845716 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 28076845716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36569989092).

28076845716 is an abundant number, since it is smaller than the sum of its proper divisors (45063132468).

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

28076845716 is a wasteful number, since it uses less digits than its factorization.

28076845716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72281 (or 72276 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 28076845716 in words is "twenty-eight billion, seventy-six million, eight hundred forty-five thousand, seven hundred sixteen".