28287322582 has 4 divisors (see below), whose sum is σ = 42430983876. Its totient is φ = 14143661290.

The previous prime is 28287322579. The next prime is 28287322597. The reversal of 28287322582 is 28522378282.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7071830644 + ... + 7071830647.

It is an arithmetic number, because the mean of its divisors is an integer number (10607745969).

Almost surely, 2^28287322582 is an apocalyptic number.

28287322582 is a deficient number, since it is larger than the sum of its proper divisors (14143661294).

28287322582 is a wasteful number, since it uses less digits than its factorization.

28287322582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14143661293.

The product of its digits is 1720320, while the sum is 49.

The spelling of 28287322582 in words is "twenty-eight billion, two hundred eighty-seven million, three hundred twenty-two thousand, five hundred eighty-two".