18285746618 has 32 divisors (see below), whose sum is σ = 29548965888. Its totient is φ = 8455161600.

The previous prime is 18285746551. The next prime is 18285746629. The reversal of 18285746618 is 81664758281.

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 15 ways as a sum of consecutive naturals, for example, 2250383 + ... + 2258493.

It is an arithmetic number, because the mean of its divisors is an integer number (923405184).

Almost surely, 2^18285746618 is an apocalyptic number.

18285746618 is a deficient number, since it is larger than the sum of its proper divisors (11263219270).

18285746618 is a wasteful number, since it uses less digits than its factorization.

18285746618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9278.

The product of its digits is 5160960, while the sum is 56.

The spelling of 18285746618 in words is "eighteen billion, two hundred eighty-five million, seven hundred forty-six thousand, six hundred eighteen".