28573841664788 has 36 divisors (see below), whose sum is σ = 58168529518932. Its totient is φ = 12245858069760.

The previous prime is 28573841664763. The next prime is 28573841664791. The reversal of 28573841664788 is 88746614837582.

It can be written as a sum of positive squares in 2 ways, for example, as 4401948078724 + 24171893586064 = 2098082^2 + 4916492^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42871820 + ... + 43533212.

It is an arithmetic number, because the mean of its divisors is an integer number (1615792486637).

Almost surely, 2^{28573841664788} is an apocalyptic number.

28573841664788 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28573841664788 is an abundant number, since it is smaller than the sum of its proper divisors (29594687854144).

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

28573841664788 is a wasteful number, since it uses less digits than its factorization.

28573841664788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881832 (or 881823 counting only the distinct ones).

The product of its digits is 3468165120, while the sum is 77.

The spelling of 28573841664788 in words is "twenty-eight trillion, five hundred seventy-three billion, eight hundred forty-one million, six hundred sixty-four thousand, seven hundred eighty-eight".