28591046618 has 8 divisors (see below), whose sum is σ = 42909497280. Its totient is φ = 14287880860.

The previous prime is 28591046597. The next prime is 28591046647. The reversal of 28591046618 is 81664019582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3816548 + ... + 3824031.

It is an arithmetic number, because the mean of its divisors is an integer number (5363687160).

Almost surely, 2^28591046618 is an apocalyptic number.

28591046618 is a deficient number, since it is larger than the sum of its proper divisors (14318450662).

28591046618 is a wasteful number, since it uses less digits than its factorization.

28591046618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7642452.

The product of its (nonzero) digits is 829440, while the sum is 50.

The spelling of 28591046618 in words is "twenty-eight billion, five hundred ninety-one million, forty-six thousand, six hundred eighteen".