28531014068 has 12 divisors (see below), whose sum is σ = 49934633700. Its totient is φ = 14263975872.

The previous prime is 28531014047. The next prime is 28531014101. The reversal of 28531014068 is 86041013582.

It can be written as a sum of positive squares in 2 ways, for example, as 18394954384 + 10136059684 = 135628^2 + 100678^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 340343 + ... + 415806.

It is an arithmetic number, because the mean of its divisors is an integer number (4161219475).

Almost surely, 2^28531014068 is an apocalyptic number.

It is an amenable number.

28531014068 is a deficient number, since it is larger than the sum of its proper divisors (21403619632).

28531014068 is a wasteful number, since it uses less digits than its factorization.

28531014068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765586 (or 765584 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The spelling of 28531014068 in words is "twenty-eight billion, five hundred thirty-one million, fourteen thousand, sixty-eight".