28081675468 has 48 divisors (see below), whose sum is σ = 61298189568. Its totient is φ = 10935720000.

The previous prime is 28081675463. The next prime is 28081675487. The reversal of 28081675468 is 86457618082.

It is not an unprimeable number, because it can be changed into a prime (28081675463) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 663543 + ... + 704593.

It is an arithmetic number, because the mean of its divisors is an integer number (1277045616).

Almost surely, 2^28081675468 is an apocalyptic number.

28081675468 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28081675468 is an abundant number, since it is smaller than the sum of its proper divisors (33216514100).

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

28081675468 is a wasteful number, since it uses less digits than its factorization.

28081675468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43294 (or 43292 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 55.

The spelling of 28081675468 in words is "twenty-eight billion, eighty-one million, six hundred seventy-five thousand, four hundred sixty-eight".