28306209814 has 4 divisors (see below), whose sum is σ = 42459314724. Its totient is φ = 14153104906.

The previous prime is 28306209769. The next prime is 28306209817. The reversal of 28306209814 is 41890260382.

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 (28306209817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7076552452 + ... + 7076552455.

It is an arithmetic number, because the mean of its divisors is an integer number (10614828681).

Almost surely, 2^28306209814 is an apocalyptic number.

28306209814 is a deficient number, since it is larger than the sum of its proper divisors (14153104910).

28306209814 is a wasteful number, since it uses less digits than its factorization.

28306209814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14153104909.

The product of its (nonzero) digits is 165888, while the sum is 43.

The spelling of 28306209814 in words is "twenty-eight billion, three hundred six million, two hundred nine thousand, eight hundred fourteen".