28360278008 has 16 divisors (see below), whose sum is σ = 53493940080. Its totient is φ = 14095227328.

The previous prime is 28360277993. The next prime is 28360278031. The reversal of 28360278008 is 80087206382.

It is a self number, because there is not a number n which added to its sum of digits gives 28360278008.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10612541 + ... + 10615212.

It is an arithmetic number, because the mean of its divisors is an integer number (3343371255).

Almost surely, 2^28360278008 is an apocalyptic number.

It is an amenable number.

28360278008 is a deficient number, since it is larger than the sum of its proper divisors (25133662072).

28360278008 is a wasteful number, since it uses less digits than its factorization.

28360278008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21227926 (or 21227922 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 28360278008 in words is "twenty-eight billion, three hundred sixty million, two hundred seventy-eight thousand, eight".