28855876608 has 396 divisors, whose sum is σ = 91630401408. Its totient is φ = 8741191680.

The previous prime is 28855876603. The next prime is 28855876633. The reversal of 28855876608 is 80667855882.

28855876608 is a `hidden beast` number, since 2 + 8 + 8 + 558 + 76 + 6 + 0 + 8 = 666.

It is a super-2 number, since 2×28855876608² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28855876601) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 151077793 + ... + 151077983.

Almost surely, 2^28855876608 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 28855876608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45815200704).

28855876608 is an abundant number, since it is smaller than the sum of its proper divisors (62774524800).

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

28855876608 is a wasteful number, since it uses less digits than its factorization.

28855876608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 51609600, while the sum is 63.

The spelling of 28855876608 in words is "twenty-eight billion, eight hundred fifty-five million, eight hundred seventy-six thousand, six hundred eight".