28775133073960 has 256 divisors, whose sum is σ = 82291836211200. Its totient is φ = 8809189171200.

The previous prime is 28775133073949. The next prime is 28775133074057. The reversal of 28775133073960 is 6937033157782.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 260492340 + ... + 260602780.

It is an arithmetic number, because the mean of its divisors is an integer number (321452485200).

Almost surely, 2^{28775133073960} is an apocalyptic number.

28775133073960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28775133073960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41145918105600).

28775133073960 is an abundant number, since it is smaller than the sum of its proper divisors (53516703137240).

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

28775133073960 is a wasteful number, since it uses less digits than its factorization.

28775133073960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112812 (or 112808 counting only the distinct ones).

The product of its (nonzero) digits is 40007520, while the sum is 61.

The spelling of 28775133073960 in words is "twenty-eight trillion, seven hundred seventy-five billion, one hundred thirty-three million, seventy-three thousand, nine hundred sixty".