28660825211328 has 560 divisors, whose sum is σ = 93315888673920. Its totient is φ = 8657636327424.

The previous prime is 28660825211303. The next prime is 28660825211341. The reversal of 28660825211328 is 82311252806682.

28660825211328 is a `hidden beast` number, since 2 + 8 + 6 + 6 + 0 + 82 + 521 + 1 + 32 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 79 ways as a sum of consecutive naturals, for example, 937931026 + ... + 937961582.

Almost surely, 2^{28660825211328} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28660825211328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46657944336960).

28660825211328 is an abundant number, since it is smaller than the sum of its proper divisors (64655063462592).

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

28660825211328 is a wasteful number, since it uses less digits than its factorization.

28660825211328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30994 (or 30975 counting only the distinct ones).

The product of its (nonzero) digits is 4423680, while the sum is 54.

The spelling of 28660825211328 in words is "twenty-eight trillion, six hundred sixty billion, eight hundred twenty-five million, two hundred eleven thousand, three hundred twenty-eight".