28806915076 has 27 divisors (see below), whose sum is σ = 50929990293. Its totient is φ = 14256984000.

The previous prime is 28806915031. The next prime is 28806915079. The reversal of 28806915076 is 67051960882.

The square root of 28806915076 is 169726.

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., 507600900 + 28299314176 = 22530^2 + 168224^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28806915079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 38357701 + ... + 38358451.

Almost surely, 2^28806915076 is an apocalyptic number.

28806915076 is the 169726-th square number.

It is an amenable number.

28806915076 is a deficient number, since it is larger than the sum of its proper divisors (22123075217).

28806915076 is an frugal number, since it uses more digits than its factorization.

28806915076 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732 (or 866 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 52.

The spelling of 28806915076 in words is "twenty-eight billion, eight hundred six million, nine hundred fifteen thousand, seventy-six".