28320641116 has 6 divisors (see below), whose sum is σ = 49561121960. Its totient is φ = 14160320556.

The previous prime is 28320641081. The next prime is 28320641117. The reversal of 28320641116 is 61114602382.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28320641117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3540080136 + ... + 3540080143.

Almost surely, 2^28320641116 is an apocalyptic number.

It is an amenable number.

28320641116 is a deficient number, since it is larger than the sum of its proper divisors (21240480844).

28320641116 is a wasteful number, since it uses less digits than its factorization.

28320641116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7080160283 (or 7080160281 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 28320641116 in words is "twenty-eight billion, three hundred twenty million, six hundred forty-one thousand, one hundred sixteen".