28072768524828 has 96 divisors (see below), whose sum is σ = 67630221632064. Its totient is φ = 9056412499968.

The previous prime is 28072768524799. The next prime is 28072768524859. The reversal of 28072768524828 is 82842586727082.

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 31 ways as a sum of consecutive naturals, for example, 1009180776 + ... + 1009208592.

It is an arithmetic number, because the mean of its divisors is an integer number (704481475334).

Almost surely, 2^{28072768524828} is an apocalyptic number.

It is an amenable number.

28072768524828 is an abundant number, since it is smaller than the sum of its proper divisors (39557453107236).

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

28072768524828 is a wasteful number, since it uses less digits than its factorization.

28072768524828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39831 (or 39829 counting only the distinct ones).

The product of its (nonzero) digits is 385351680, while the sum is 69.

The spelling of 28072768524828 in words is "twenty-eight trillion, seventy-two billion, seven hundred sixty-eight million, five hundred twenty-four thousand, eight hundred twenty-eight".