28380109955244 has 24 divisors (see below), whose sum is σ = 66283263496128. Its totient is φ = 9451035661200.

The previous prime is 28380109955231. The next prime is 28380109955279. The reversal of 28380109955244 is 44255990108382.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1125110682 + ... + 1125135905.

It is an arithmetic number, because the mean of its divisors is an integer number (2761802645672).

Almost surely, 2^{28380109955244} is an apocalyptic number.

It is an amenable number.

28380109955244 is an abundant number, since it is smaller than the sum of its proper divisors (37903153540884).

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

28380109955244 is a wasteful number, since it uses less digits than its factorization.

28380109955244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250247645 (or 2250247643 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 60.

The spelling of 28380109955244 in words is "twenty-eight trillion, three hundred eighty billion, one hundred nine million, nine hundred fifty-five thousand, two hundred forty-four".