28287354286 has 4 divisors (see below), whose sum is σ = 42431031432. Its totient is φ = 14143677142.

The previous prime is 28287354283. The next prime is 28287354301. The reversal of 28287354286 is 68245378282.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28287354283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7071838570 + ... + 7071838573.

It is an arithmetic number, because the mean of its divisors is an integer number (10607757858).

Almost surely, 2^28287354286 is an apocalyptic number.

28287354286 is a deficient number, since it is larger than the sum of its proper divisors (14143677146).

28287354286 is a wasteful number, since it uses less digits than its factorization.

28287354286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14143677145.

The product of its digits is 10321920, while the sum is 55.

The spelling of 28287354286 in words is "twenty-eight billion, two hundred eighty-seven million, three hundred fifty-four thousand, two hundred eighty-six".