28805534036268 has 192 divisors, whose sum is σ = 81548321218560. Its totient is φ = 7806243456000.

The previous prime is 28805534036179. The next prime is 28805534036303. The reversal of 28805534036268 is 86263043550882.

It is a happy number.

It is a super-2 number, since 2×28805534036268² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5945343 + ... + 9641481.

It is an arithmetic number, because the mean of its divisors is an integer number (424730839680).

Almost surely, 2^{28805534036268} 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 28805534036268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40774160609280).

28805534036268 is an abundant number, since it is smaller than the sum of its proper divisors (52742787182292).

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

28805534036268 is a wasteful number, since it uses less digits than its factorization.

28805534036268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3696348 (or 3696346 counting only the distinct ones).

The product of its (nonzero) digits is 66355200, while the sum is 60.

The spelling of 28805534036268 in words is "twenty-eight trillion, eight hundred five billion, five hundred thirty-four million, thirty-six thousand, two hundred sixty-eight".