28563227853776 has 960 divisors, whose sum is σ = 76062185422848. Its totient is φ = 10256601600000.

The previous prime is 28563227853661. The next prime is 28563227853799. The reversal of 28563227853776 is 67735872236582.

It is a Harshad number since it is a multiple of its sum of digits (71).

Its product of digits (1422489600) is a multiple of the sum of its prime factors (600).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 90104819570 + ... + 90104819886.

Almost surely, 2^{28563227853776} 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 28563227853776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38031092711424).

28563227853776 is an abundant number, since it is smaller than the sum of its proper divisors (47498957569072).

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

28563227853776 is a wasteful number, since it uses less digits than its factorization.

28563227853776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600 (or 587 counting only the distinct ones).

The product of its digits is 1422489600, while the sum is 71.

The spelling of 28563227853776 in words is "twenty-eight trillion, five hundred sixty-three billion, two hundred twenty-seven million, eight hundred fifty-three thousand, seven hundred seventy-six".