28857633336 has 192 divisors, whose sum is σ = 91571251200. Its totient is φ = 8038082304.

The previous prime is 28857633323. The next prime is 28857633341. The reversal of 28857633336 is 63333675882.

28857633336 is a `hidden beast` number, since 2 + 8 + 8 + 576 + 3 + 33 + 36 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16404825 + ... + 16406583.

It is an arithmetic number, because the mean of its divisors is an integer number (476933600).

Almost surely, 2^28857633336 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 28857633336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45785625600).

28857633336 is an abundant number, since it is smaller than the sum of its proper divisors (62713617864).

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

28857633336 is a wasteful number, since it uses less digits than its factorization.

28857633336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2578 (or 2571 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 54.

The spelling of 28857633336 in words is "twenty-eight billion, eight hundred fifty-seven million, six hundred thirty-three thousand, three hundred thirty-six".