28287016232 has 16 divisors (see below), whose sum is σ = 55829637600. Its totient is φ = 13399112880.

The previous prime is 28287016231. The next prime is 28287016259. The reversal of 28287016232 is 23261078282.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 28287016232.

It is not an unprimeable number, because it can be changed into a prime (28287016231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93049244 + ... + 93049547.

It is an arithmetic number, because the mean of its divisors is an integer number (3489352350).

Almost surely, 2^28287016232 is an apocalyptic number.

It is an amenable number.

28287016232 is a deficient number, since it is larger than the sum of its proper divisors (27542621368).

28287016232 is a wasteful number, since it uses less digits than its factorization.

28287016232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186098816 (or 186098812 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 28287016232 in words is "twenty-eight billion, two hundred eighty-seven million, sixteen thousand, two hundred thirty-two".