28568007618 has 16 divisors (see below), whose sum is σ = 58680232320. Its totient is φ = 9265299696.

The previous prime is 28568007577. The next prime is 28568007679. The reversal of 28568007618 is 81670086582.

It is a super-2 number, since 2×28568007618² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 64342138 + ... + 64342581.

It is an arithmetic number, because the mean of its divisors is an integer number (3667514520).

Almost surely, 2^28568007618 is an apocalyptic number.

28568007618 is an abundant number, since it is smaller than the sum of its proper divisors (30112224702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28568007618 is a wasteful number, since it uses less digits than its factorization.

28568007618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128684761.

The product of its (nonzero) digits is 1290240, while the sum is 51.

The spelling of 28568007618 in words is "twenty-eight billion, five hundred sixty-eight million, seven thousand, six hundred eighteen".