28450729863 has 6 divisors (see below), whose sum is σ = 41095498704. Its totient is φ = 18967153236.

The previous prime is 28450729837. The next prime is 28450729889. The reversal of 28450729863 is 36892705482.

It is an interprime number because it is at equal distance from previous prime (28450729837) and next prime (28450729889).

It is not a de Polignac number, because 28450729863 - 2²⁰ = 28449681287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28450728863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1580596095 + ... + 1580596112.

It is an arithmetic number, because the mean of its divisors is an integer number (6849249784).

Almost surely, 2^28450729863 is an apocalyptic number.

28450729863 is a deficient number, since it is larger than the sum of its proper divisors (12644768841).

28450729863 is a wasteful number, since it uses less digits than its factorization.

28450729863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3161192213 (or 3161192210 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 28450729863 in words is "twenty-eight billion, four hundred fifty million, seven hundred twenty-nine thousand, eight hundred sixty-three".