28927638848 has 14 divisors (see below), whose sum is σ = 57403283466. Its totient is φ = 14463819392.

The previous prime is 28927638811. The next prime is 28927638877. The reversal of 28927638848 is 84883672982.

It can be written as a sum of positive squares in only one way, i.e., 28788587584 + 139051264 = 169672^2 + 11792^2 .

It is a congruent 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 as a sum of consecutive naturals, namely, 225997115 + ... + 225997242.

Almost surely, 2^28927638848 is an apocalyptic number.

It is an amenable number.

28927638848 is a deficient number, since it is larger than the sum of its proper divisors (28475644618).

28927638848 is an equidigital number, since it uses as much as digits as its factorization.

28927638848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451994369 (or 451994359 counting only the distinct ones).

The product of its digits is 74317824, while the sum is 65.

The spelling of 28927638848 in words is "twenty-eight billion, nine hundred twenty-seven million, six hundred thirty-eight thousand, eight hundred forty-eight".