28623784863 has 8 divisors (see below), whose sum is σ = 38202725808. Its totient is φ = 19063683584.

The previous prime is 28623784841. The next prime is 28623784907. The reversal of 28623784863 is 36848732682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28623784863 - 2⁹ = 28623784351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28623783863) 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 in 7 ways as a sum of consecutive naturals, for example, 4706370 + ... + 4712447.

It is an arithmetic number, because the mean of its divisors is an integer number (4775340726).

Almost surely, 2^28623784863 is an apocalyptic number.

28623784863 is a deficient number, since it is larger than the sum of its proper divisors (9578940945).

28623784863 is a wasteful number, since it uses less digits than its factorization.

28623784863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9419833.

The product of its digits is 18579456, while the sum is 57.

The spelling of 28623784863 in words is "twenty-eight billion, six hundred twenty-three million, seven hundred eighty-four thousand, eight hundred sixty-three".