28287017384 has 64 divisors (see below), whose sum is σ = 54250560000. Its totient is φ = 13824898560.

The previous prime is 28287017329. The next prime is 28287017387. The reversal of 28287017384 is 48371078282.

It is not an unprimeable number, because it can be changed into a prime (28287017387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25644977 + ... + 25646079.

It is an arithmetic number, because the mean of its divisors is an integer number (847665000).

Almost surely, 2^28287017384 is an apocalyptic number.

It is an amenable number.

28287017384 is a deficient number, since it is larger than the sum of its proper divisors (25963542616).

28287017384 is a wasteful number, since it uses less digits than its factorization.

28287017384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578 (or 1574 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 50.

The spelling of 28287017384 in words is "twenty-eight billion, two hundred eighty-seven million, seventeen thousand, three hundred eighty-four".