28076853648 has 20 divisors (see below), whose sum is σ = 72531872048. Its totient is φ = 9358951200.

The previous prime is 28076853631. The next prime is 28076853661. The reversal of 28076853648 is 84635867082.

It is a happy number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 292467178 + ... + 292467273.

Almost surely, 2^28076853648 is an apocalyptic number.

It is an amenable number.

28076853648 is an abundant number, since it is smaller than the sum of its proper divisors (44455018400).

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

28076853648 is a wasteful number, since it uses less digits than its factorization.

28076853648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584934462 (or 584934456 counting only the distinct ones).

The product of its (nonzero) digits is 15482880, while the sum is 57.

The spelling of 28076853648 in words is "twenty-eight billion, seventy-six million, eight hundred fifty-three thousand, six hundred forty-eight".