28718573618 has 16 divisors (see below), whose sum is σ = 50929490880. Its totient is φ = 11883547536.

The previous prime is 28718573591. The next prime is 28718573621. The reversal of 28718573618 is 81637581782.

It is a Curzon number.

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, 35367296 + ... + 35368107.

It is an arithmetic number, because the mean of its divisors is an integer number (3183093180).

Almost surely, 2^28718573618 is an apocalyptic number.

28718573618 is a deficient number, since it is larger than the sum of its proper divisors (22210917262).

28718573618 is a wasteful number, since it uses less digits than its factorization.

28718573618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70735441.

The product of its digits is 4515840, while the sum is 56.

The spelling of 28718573618 in words is "twenty-eight billion, seven hundred eighteen million, five hundred seventy-three thousand, six hundred eighteen".