28568399006 has 36 divisors (see below), whose sum is σ = 49439528568. Its totient is φ = 12128408424.

The previous prime is 28568398997. The next prime is 28568399009. The reversal of 28568399006 is 60099386582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28568399009) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 125851865 + ... + 125852091.

It is an arithmetic number, because the mean of its divisors is an integer number (1373320238).

Almost surely, 2^28568399006 is an apocalyptic number.

28568399006 is a deficient number, since it is larger than the sum of its proper divisors (20871129562).

28568399006 is an frugal number, since it uses more digits than its factorization.

28568399006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 56.

Multiplying 28568399006 by its sum of digits (56), we get a square (1599830344336 = 1264844²).

The spelling of 28568399006 in words is "twenty-eight billion, five hundred sixty-eight million, three hundred ninety-nine thousand, six".