28281469468 has 24 divisors (see below), whose sum is σ = 57244424832. Its totient is φ = 11974597104.

The previous prime is 28281469453. The next prime is 28281469481. The reversal of 28281469468 is 86496418282.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6082330 + ... + 6086977.

It is an arithmetic number, because the mean of its divisors is an integer number (2385184368).

Almost surely, 2^28281469468 is an apocalyptic number.

28281469468 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28281469468 is an abundant number, since it is smaller than the sum of its proper divisors (28962955364).

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

28281469468 is a wasteful number, since it uses less digits than its factorization.

28281469468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12169401 (or 12169399 counting only the distinct ones).

The product of its digits is 10616832, while the sum is 58.

The spelling of 28281469468 in words is "twenty-eight billion, two hundred eighty-one million, four hundred sixty-nine thousand, four hundred sixty-eight".