28306113863 has 4 divisors (see below), whose sum is σ = 28320276000. Its totient is φ = 28291951728.

The previous prime is 28306113809. The next prime is 28306113887. The reversal of 28306113863 is 36831160382.

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

It is a cyclic number.

It is not a de Polignac number, because 28306113863 - 2²² = 28301919559 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28306113863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28306113893) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 7078070 + ... + 7082067.

It is an arithmetic number, because the mean of its divisors is an integer number (7080069000).

Almost surely, 2^28306113863 is an apocalyptic number.

28306113863 is a deficient number, since it is larger than the sum of its proper divisors (14162137).

28306113863 is a wasteful number, since it uses less digits than its factorization.

28306113863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14162136.

The product of its (nonzero) digits is 124416, while the sum is 41.

The spelling of 28306113863 in words is "twenty-eight billion, three hundred six million, one hundred thirteen thousand, eight hundred sixty-three".