28064866260 has 48 divisors (see below), whose sum is σ = 78661731456. Its totient is φ = 7476335232.

The previous prime is 28064866231. The next prime is 28064866327. The reversal of 28064866260 is 6266846082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178939 + ... + 296898.

It is an arithmetic number, because the mean of its divisors is an integer number (1638786072).

Almost surely, 2^28064866260 is an apocalyptic number.

28064866260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28064866260 is an abundant number, since it is smaller than the sum of its proper divisors (50596865196).

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

28064866260 is a wasteful number, since it uses less digits than its factorization.

28064866260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476832 (or 476830 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 48.

The spelling of 28064866260 in words is "twenty-eight billion, sixty-four million, eight hundred sixty-six thousand, two hundred sixty".